How Many Phones Can I Carry to India?
India does not have a customs rule saying that every passenger may carry exactly one, two or three mobile phones. The important questions are whether the phones are genuinely your used personal effects, whether you are carrying newly purchased phones, their value, and whether the quantity looks like normal personal baggage or goods being brought for sale.
A traveler carrying a personal phone and a separate work phone is very different from someone arriving with three brand-new sealed iPhones. Under India's Baggage Rules, 2026, used personal effects needed for daily life can receive duty-free treatment, while other eligible goods may use the passenger's general free allowance. For most residents, NRIs, OCI travelers and other qualifying passengers arriving by air or sea, that general allowance is now ₹75,000.
This guide explains what happens with one, two, three or more phones, sealed iPhones, phones brought from the USA or Dubai, customs declaration, purchase bills, the new ₹75,000 allowance and where to pack phones and power banks on the flight.
Quick answer: There is no official “maximum two phones” rule. One or two genuinely used phones are easier to explain as normal personal effects. Three or more phones are not automatically prohibited, but customs may ask more questions—especially when the phones are new, sealed, identical or appear to be gifts or resale stock.
Table of Contents
- How Many Phones Can You Carry to India?
- Is There a Two-Phone Limit?
- What Happens With 1, 2 or 3 Phones?
- When Is a Phone a Personal Effect?
- Can I Bring 3 Phones From Abroad to India?
- Can I Carry Two Phones at the Airport?
- How Many Phones Can I Bring From USA to India?
- Can I Bring Mobile Phones From Dubai to India?
- What About a New or Sealed iPhone?
- Should You Unbox a New iPhone?
- What Is the ₹75,000 Duty-Free Allowance?
- What About Foreign Tourists?
- Can Family Members Combine Their Allowances?
- How Does the Allowance Work With a New Phone?
- How Much Customs Duty Could Apply?
- When Should You Declare a Phone?
- Red Channel vs Green Channel
- Can You Declare Electronics Online?
- What If You Don't Have the Purchase Bill?
- What If the Phone Is a Gift?
- When Do Multiple Phones Look Commercial?
- How Many Phones Can You Carry in Hand Luggage?
- Can an iPhone Go in Checked Baggage?
- Where Should Power Banks and Batteries Go?
- What About Domestic Flights Within India?
- Will a U.S. iPhone Work in India?
- What About Apple Watch, iPad and AirPods?
- Common Customs Mistakes
- Official Sources
- Related Electronics and NRI Guides
- Frequently Asked Questions
How Many Phones Can You Carry to India?
There is no fixed customs number such as “only two phones per passenger.”
Indian customs looks at the circumstances.
For example:
- One used personal phone is easy to understand as a normal personal device.
- A personal phone plus a used company phone can also have an obvious personal/work purpose.
- Three genuinely used phones are not automatically illegal or dutiable simply because there are three.
- Three brand-new sealed iPhones create a very different customs situation.
| What You're Carrying | Likely Customs Question | What Matters |
|---|---|---|
| 1 used phone | Usually little concern | Normal personal use |
| 2 used phones | Why do you have two? | Personal + work use is common |
| 3 used phones | Are all three genuinely personal? | Age, use and circumstances matter |
| 1 used + 1 new phone | What is the value of the new phone? | General free allowance may matter |
| 1 used + 2 new phones | Are these gifts or imports? | Value and quantity become important |
| 3 sealed identical phones | Are these for resale? | May no longer look like bona fide personal baggage |
Number alone does not decide customs duty. Used personal effects, newly purchased goods, value, quantity and whether the goods appear commercial all matter.
Is There a Two-Phone Limit for India?
No Baggage Rules, 2026 provision says that an arriving passenger is limited to exactly two mobile phones.
This is one of the most repeated myths online.
You may see statements such as:
- “Only one phone is duty-free.”
- “Two phones are always allowed.”
- “The third phone is automatically taxable.”
That is not how the current baggage rules are written.
The rules instead provide duty-free treatment for qualifying used personal effects required for daily necessities of life and a separate general free allowance for eligible other articles in bona fide accompanied baggage.
Don't confuse a useful rule of thumb with the law. Two used phones may be easy to explain, but “two phones duty-free” is not an official numerical customs exemption.
What Happens With One Phone, Two Phones or Three Phones?
One Phone
A used phone that you actually use every day is the simplest case.
For example:
- Your regular iPhone
- Your regular Samsung phone
- Your everyday Google Pixel
A genuinely used personal device is very different from merchandise being imported for somebody else.
Two Phones
Two phones are common today.
Examples:
- Personal phone + company phone
- Indian phone + U.S. phone
- Primary phone + older backup phone
- U.S. number + Indian number
There is no requirement that every traveler carrying two used phones must automatically pay customs duty.
Three Phones
Three phones are not automatically prohibited either.
But customs may reasonably want to understand why one passenger needs all three.
Compare:
| Three-Phone Situation | How It Looks |
|---|---|
| Used personal iPhone + used work Samsung + old backup phone | Can have a credible personal explanation |
| Used phone + wife's new iPhone + brother's new iPhone | Two newly imported goods need consideration |
| Three new sealed iPhone Pro models | Much more likely to attract customs attention |
| Three identical phones with no personal data | May look like resale stock |
When Is a Mobile Phone a Personal Effect?
The Baggage Rules, 2026 define personal effects broadly as articles a passenger may reasonably require for personal use during the journey, considering all the circumstances, while excluding goods imported for commercial purposes.
The rules separately provide duty-free clearance for used personal effects required for satisfying daily necessities of life.
For phones, practical indicators of genuine use can include:
- The phone has been used for some time.
- Your personal accounts and apps are installed.
- It contains your SIM/eSIM.
- It is your employer-issued device.
- It has ordinary wear from use.
- You have a reasonable reason for carrying it.
There is no magic “used phone test.” Turning on a brand-new phone at the airport or removing its plastic does not automatically convert a new import into an old personal effect.
Can I Bring 3 Phones From Abroad to India?
Yes, you can physically travel with three phones. The customs question is whether those particular phones qualify for duty-free treatment.
Example 1: Three Phones You Already Use
You live in the United States and carry:
- Your personal iPhone
- A company-issued Android phone
- Your older phone that still has an Indian number
That is quite different from bringing three phones purchased last week.
Example 2: One Used Phone and Two New iPhones
Your personal phone may be treated differently from the two new purchases.
The new phones can fall within the general baggage allowance if otherwise eligible and within the applicable value limit, but expensive devices can quickly exceed that allowance.
Example 3: Three Sealed Phones
Multiple identical sealed devices can raise a much bigger question: are these genuinely bona fide passenger baggage, or are they goods intended for distribution or resale?
The third phone is not automatically taxable because it is “phone number three.” Customs treatment depends on what the phones actually are and why you are bringing them.
Can I Carry Two Phones at the Airport?
Yes. Carrying two mobile phones through an airport is normal.
There are two separate issues:
- Aviation security: whether the phones can safely travel on the aircraft
- Indian customs: whether arriving phones are personal effects or imported goods subject to duty/declaration
You do not violate an airline rule merely because you have two ordinary mobile phones in your cabin bag.
How Many Phones Can I Bring From USA to India?
The same Indian customs rules apply whether you arrive from the United States, Canada, Europe or another foreign country.
Common USA-to-India situations include:
- Your current U.S. iPhone
- Your Indian phone with an Indian SIM
- A company-issued U.S. phone
- A new iPhone purchased for yourself
- A new iPhone brought as a gift
Used U.S. Phone
A phone that you genuinely use yourself is much easier to distinguish as a personal effect.
New iPhone From the Apple Store
A newly purchased iPhone is different. Its value should be considered against your available general free allowance.
Several New iPhones
Multiple new phones increase both the total value and the possibility that customs sees the quantity as more than normal personal baggage.
USA tip: Keep the Apple invoice or retailer receipt for a newly purchased phone. A receipt can make valuation much easier if Customs asks how much you paid.
Can I Bring a Mobile Phone From Dubai to India?
Yes. Buying the phone in Dubai does not by itself create a separate “Dubai phone rule.”
The same basic Indian baggage principles apply when you arrive from:
- Dubai
- Abu Dhabi
- Saudi Arabia
- Qatar
- Oman
- Kuwait
- Bahrain
A used personal phone is different from a new phone purchased abroad.
If you are carrying your existing phone plus a newly purchased expensive phone from Dubai, consider the value of that new purchase against your applicable customs allowance.
Buying at Dubai Duty Free does not automatically make the phone duty-free when entering India. “Duty free” at the departure airport and your Indian customs allowance are separate issues.
Can You Bring a Sealed iPhone to India?
Yes, but a sealed iPhone is clearly a newly purchased item rather than an obviously used personal effect.
That does not automatically mean customs duty is due.
The real questions include:
- What is its value?
- What passenger category are you in?
- How much general free allowance is available?
- What other new goods are you carrying?
- Are you carrying multiple new phones?
- Do the goods appear to be bona fide passenger baggage?
Important: A sealed phone within an available ₹75,000 general allowance is a different situation from a ₹150,000 phone or several sealed phones. Packaging alone does not determine the tax result.
Should You Unbox an iPhone Before Traveling to India?
You do not need to unbox a phone merely to fly with it.
More importantly, unboxing is not a customs loophole.
Removing:
- The shrink wrap
- The cardboard box
- The screen protector
- The store bag
does not erase the fact that you just purchased the phone.
Customs can look at all relevant facts, including value, condition, quantity and circumstances.
Do not throw away an expensive phone's receipt or packaging just because someone online says an unboxed phone is automatically duty-free. That rule does not exist.
What Is the ₹75,000 Duty-Free Allowance?
India introduced new Baggage Rules effective February 2, 2026.
For passengers arriving in India other than by land, the current general free allowances include:
| Passenger Category | General Free Allowance |
|---|---|
| Resident | ₹75,000 |
| Tourist of Indian origin | ₹75,000 |
| Qualifying foreigner with a valid visa other than tourist visa | ₹75,000 |
| Tourist of foreign origin | ₹25,000 |
| Crew member | ₹2,500 |
The Customs Baggage Declaration Regulations, 2026 clarify that the term tourist of Indian origin includes NRIs and OCI cardholders.
Used personal effects required for daily necessities are dealt with separately under the rules.
Old articles quoting ₹50,000 are outdated for these passenger categories. The general free allowance changed with the Baggage Rules, 2026.
One Laptop Has a Separate Rule
A passenger aged 18 or older, other than a crew member, is currently allowed one new laptop, including a notepad computer, duty-free in bona fide baggage.
There is no equivalent special rule saying “one new iPhone duty-free regardless of price.”
What If You Are a Foreign Tourist?
A tourist of foreign origin arriving other than by land currently receives a general free allowance of ₹25,000, rather than ₹75,000.
This distinction matters when reading generic advice that simply says:
“Everyone gets ₹75,000.”
That is not correct.
Can Family Members Combine Their ₹75,000 Allowances?
No.
The Baggage Rules, 2026 specifically say that one passenger's free allowance cannot be pooled with another passenger's allowance.
Example
A husband and wife cannot simply say:
₹75,000 + ₹75,000 = ₹150,000, so one ₹150,000 iPhone belongs under our combined allowance.
The rule expressly prevents pooling.
Family allowances are individual. Splitting several new phones among family suitcases also does not automatically make a commercial-looking shipment personal baggage.
How Does the Customs Allowance Work With a New Phone?
Consider a traveler entitled to the ₹75,000 general free allowance.
Example A: New Phone Worth ₹60,000
If it is an eligible article in bona fide baggage and the traveler has not used the allowance on other goods, its value may fall within the general free allowance.
Example B: New Phone Worth ₹100,000
The phone is above the general allowance. Customs treatment of the dutiable value follows the applicable baggage duty provisions.
Example C: New Phone + Watch + AirPods
The allowance is not a separate ₹75,000 allowance for each electronic device.
The values of eligible newly acquired goods need to be considered together.
Think in total value, not number of shopping bags. A phone, Apple Watch, AirPods, perfume and other purchases can all matter when calculating how much of your general allowance has been used.
How Much Customs Duty Applies to Extra Phones?
If a phone is dutiable, Customs calculates duty according to the applicable baggage tariff, assessable value and current exemptions.
I would not rely on an old article that says every extra iPhone is automatically charged at a fixed percentage without first checking the current rate.
What Customs May Need to Determine
- Purchase price
- Current value
- Model and storage capacity
- Whether the device is new or used
- Available baggage allowance
- Whether it is bona fide baggage
- Whether a special restriction applies
Do not confuse customs duty with a fine. Paying lawful baggage duty on a declared item is different from penalties that can arise from concealment or non-declaration.
When Should You Declare a Phone at Indian Customs?
The 2026 customs regulations require passengers carrying dutiable or prohibited goods to make the required baggage declaration before entering the Green Channel.
You should pay particular attention when carrying:
- A valuable new phone above your available allowance
- Multiple new phones
- Several sealed electronics
- Goods you believe may be dutiable
- Goods you are unsure how Customs will classify
If your only device is your ordinary used personal phone, that is a very different situation.
Red Channel vs Green Channel
| Channel | Who Should Use It? |
|---|---|
| Green Channel | Passengers who are not required to report dutiable or prohibited goods |
| Red Channel | Passengers making a declaration for goods requiring customs clearance or duty payment |
If you know you have dutiable phones, declaration is much safer than trying to make several new phones look used and walking through Green Channel.
Can You Declare New Phones Online Before Arriving?
Yes. The Customs Baggage (Declaration and Processing) Regulations, 2026 introduced electronic declaration through the Customs automated system.
The regulations identify:
- ICEGATE
- ATITHI web/mobile facilities
as part of the automated declaration framework.
A passenger can also make an advance electronic declaration up to three days before arrival. The declaration can be updated until the date and time of arrival where applicable.
Carrying expensive new electronics? The new electronic declaration system is worth checking before you board your flight to India rather than figuring everything out after landing.
What If You Don't Have the iPhone Purchase Bill?
Not having a receipt does not make the phone duty-free.
Customs still needs a value if the item is dutiable and can determine that value using available evidence.
Helpful documents include:
- Apple invoice
- Retail-store invoice
- Email order confirmation
- Credit-card transaction
- Model and storage information
- Proof of when the phone was purchased
Used Phone You Bought Years Ago
If the phone is genuinely an old personal device, lack of an original store receipt is not the same problem as arriving with a brand-new sealed phone and claiming not to know its value.
For a new expensive phone, keep the invoice. It gives Customs much clearer evidence of what you actually paid.
What If the New iPhone Is a Gift?
Saying:
“It's a gift for my mother.”
does not create a special customs exemption.
A newly purchased gift is still a good being brought into India.
Its value and the passenger's available general allowance still matter.
The same principle applies to:
- iPhone for spouse
- Phone for parents
- Phone for brother or sister
- Phone for a friend
- Company phone being delivered to somebody else
When Do Multiple Phones Start Looking Commercial?
The Baggage Rules define personal effects in a way that excludes goods imported for commercial purposes.
There is no simple numerical line where “phone number four becomes commercial.”
Instead, warning signs can include:
- Several identical devices
- Several sealed boxes
- Multiple units of the newest high-value model
- Phones clearly not configured for the passenger's use
- Quantity inconsistent with the passenger's normal needs
- Evidence that the devices are intended for resale
Bona fide passenger baggage is not a substitute for commercial importing. If you are actually importing phones for sale, use the appropriate commercial import route.
How Many Phones Can You Take in Hand Luggage?
There is no normal airline rule limiting a passenger to only one or two ordinary mobile phones simply because they are in hand luggage.
Aviation rules focus more on:
- Lithium battery safety
- Damaged or recalled batteries
- Total portable electronic devices where an airline sets a limit
- Cabin baggage weight
- Safe stowage
For example, IndiGo currently publishes a limit of up to 15 portable electronic devices per passenger under its dangerous-goods guidance, subject to lithium-battery limits.
That is an aviation safety rule, not an Indian customs duty-free allowance.
Don't mix up airline and customs limits. An airline may safely carry several phones, while Customs can still assess whether newly imported phones are dutiable when you enter India.
Can I Carry an iPhone in Check-In Baggage?
Keep your phone in cabin baggage unless your airline specifically says otherwise.
Airline policies can be stricter than generic international lithium-battery guidance.
Air India currently lists mobile phones as:
- Carry-on: Yes
- Check-in: No
for its current restricted-baggage guidance.
Keeping phones with you also reduces the risk of:
- Theft
- Physical damage
- Lost baggage
- Battery-related baggage restrictions
Best practice: Put your iPhone, Android phone and other valuable personal electronics in your cabin bag rather than your checked suitcase.
Where Should Power Banks and Spare Batteries Go?
Power banks and spare lithium batteries are a different matter from the battery installed inside your phone.
They belong in cabin baggage, not checked baggage.
| Item | Cabin Baggage | Checked Baggage |
|---|---|---|
| Mobile phone | Recommended / airline-permitted | Check airline; Air India currently says no |
| Wall charger | Yes | Generally yes |
| Power bank | Yes | No |
| Spare lithium battery | Yes, subject to limits | No |
| AirPods / earbuds | Recommended | Check airline battery rules |
Read Power Bank Rules on Flights in India and Lithium Batteries on India Flights.
How Many Phones Can You Carry on a Domestic Flight in India?
Customs import rules are generally not the issue when you are taking a purely domestic flight such as:
- Delhi → Mumbai
- Kochi → Bengaluru
- Chennai → Hyderabad
You are not crossing India's customs border.
The relevant issues are airline baggage weight, portable-electronics limits and lithium-battery safety.
International connection: If you arrive from the USA in Delhi and then connect to Kochi, your import into India occurs at the applicable Indian customs point. The later domestic flight does not make newly imported phones exempt from customs.
Will a U.S. iPhone Work in India?
Many U.S. iPhones work well in India, but compatibility should be checked before purchasing.
Important questions include:
- Is the phone carrier-unlocked?
- Does it support the Indian carrier's bands?
- Does it support Airtel/Jio/Vi eSIM?
- Does the U.S. model have a physical SIM tray?
- Will Apple provide the expected service options in India?
Recent U.S.-market iPhones can be eSIM-only, which is important if the person receiving the phone expects to insert a physical Indian SIM.
Before buying for someone in India: compare the exact U.S. model, Indian network support, warranty/service situation and customs cost—not just the Apple Store sticker price.
What About Apple Watch, iPad and AirPods?
If you are also bringing other Apple electronics, remember that newly purchased goods can consume part of the same general free allowance.
The ₹75,000 allowance is not:
- ₹75,000 for phones
- plus ₹75,000 for Apple Watch
- plus ₹75,000 for AirPods
- plus ₹75,000 for an iPad
It is a general allowance for eligible articles carried by that passenger.
For device compatibility, see:
- Will a U.S. Apple Watch Cellular Work in India?
- Can You Use a U.S. Apple Watch With Jio or Airtel in India?
- Will a U.S. iPad Cellular Work in India?
Common Phone Customs Mistakes
- Believing there is an official “two phones allowed” rule.
- Assuming the third phone is automatically dutiable.
- Assuming every NRI gets one new iPhone duty-free regardless of price.
- Still using the old ₹50,000 general allowance after the 2026 rules.
- Thinking unboxing a new phone automatically converts it into a duty-free used phone.
- Throwing away the receipt for a new expensive phone.
- Carrying several identical sealed phones and calling all of them personal effects.
- Trying to combine a spouse's ₹75,000 allowance with your own.
- Assuming a gift is automatically duty-free.
- Confusing Dubai Duty Free with Indian customs duty-free allowance.
- Walking through Green Channel despite carrying known dutiable goods.
- Packing power banks in checked baggage.
- Assuming every airline permits phones in checked baggage.
- Confusing airline safety limits with customs import rules.
Bottom line: India does not set a simple one-, two- or three-phone limit. A genuinely used personal phone—or more than one when reasonably needed—is different from newly purchased phones. Under the 2026 rules, most residents, NRIs and OCI travelers arriving by air or sea have a ₹75,000 general free allowance for eligible articles, but allowances cannot be pooled. Multiple new or sealed phones deserve much more careful customs attention.
Official Sources
- Government of India — Baggage Rules, 2026
- Customs Baggage Declaration and Processing Regulations, 2026
- PIB — Government Announces Baggage Rules, 2026
- Delhi Customs — Guide to Travellers
- Central Board of Indirect Taxes and Customs
- ICEGATE
- Air India — Restricted Baggage and Electronic Devices
- IndiGo — Dangerous Goods and Portable Electronic Devices
Related Electronics and NRI Guides
- Can I Bring Used Electronics to India?
- India Customs Duty on Used Electronics
- Can I Bring an Apple Watch from USA to India? Customs Guide
- Traveling to India With a MacBook
- Traveling to India with Laptops: Customs Rules
- Travelling to India With a Desktop PC
- Lithium Batteries on India Flights
- Power Bank Rules on Flights in India
- Will a U.S. iPad Cellular Work in India?
- Will a U.S. Apple Watch Cellular Work in India?
- Can You Use a U.S. Apple Watch With Jio or Airtel in India?
- Best U.S. Phone Carrier for Travel to India
- NRI Travel to India: Phone, eSIM, Customs, ID and Airport Tips
- 23 Kg International, 15 Kg Domestic: The Baggage Problem for NRIs
Frequently Asked Questions
How many phones can I carry to India?
India does not publish a fixed one-, two- or three-phone passenger limit. Customs considers whether the phones are genuine used personal effects, newly purchased goods, their value and whether the quantity appears commercial.
Can I bring 3 phones from a foreign country to India?
Yes, three phones are not automatically prohibited. Three genuinely used personal or work phones are different from three newly purchased or sealed phones. New phones may need to be considered against your available customs allowance and declared where required.
Can I carry two phones at the airport?
Yes. Carrying a personal phone and a work or second phone is common. Airline battery rules and Indian customs rules are separate issues.
How many phones are allowed on a flight to India?
There is no standard customs rule limiting a passenger to two phones merely for being on the aircraft. Airlines can have separate limits for portable electronic devices. Customs determines import treatment when you enter India.
Can I carry two used iPhones to India without customs duty?
Two genuinely used phones may qualify as personal effects depending on the circumstances. There is no official automatic “two phones duty-free” exemption, so customs can still examine the facts.
Is the third phone automatically taxable in India?
No. The Baggage Rules do not say that phone number three automatically becomes dutiable. What matters is whether the phones are used personal effects or newly imported goods and whether the quantity appears bona fide and non-commercial.
Can I bring an iPhone from USA to India?
Yes. A used personal iPhone is different from a newly purchased phone. A new phone's value should be considered against your available general free allowance.
Can I bring a mobile phone from Dubai to India?
Yes. A personal used phone can be carried to India. A newly purchased phone from Dubai is subject to the same Indian baggage rules and allowance principles as a phone purchased in the USA or another country.
What is India's duty-free electronics allowance?
Under the Baggage Rules, 2026, residents, tourists of Indian origin and qualifying foreigners with non-tourist visas arriving other than by land generally receive a ₹75,000 general free allowance. Foreign tourists receive ₹25,000. Used personal effects required for daily necessities are dealt with separately.
Do NRIs get a ₹75,000 customs allowance?
The 2026 Customs Baggage Declaration Regulations include NRIs and OCI cardholders within the definition of tourists of Indian origin, and the Baggage Rules provide a ₹75,000 general free allowance to tourists of Indian origin arriving other than by land, subject to the rules.
Can husband and wife combine their ₹75,000 allowances?
No. The Baggage Rules, 2026 expressly state that one passenger's free allowance cannot be pooled with another passenger's allowance.
Does India allow one new phone duty-free?
There is no separate rule giving every adult one new mobile phone duty-free regardless of value. New phones can fall within the general free allowance where eligible. One new laptop for a passenger aged 18 or older has a separate specific exemption.
Do I need to unbox an iPhone before bringing it to India?
No. Unboxing is not a legal requirement and does not automatically turn a newly purchased phone into a duty-free used personal effect.
Can I carry a sealed iPhone to India?
Yes, but a sealed phone is clearly a new item. Its value and your available general free allowance matter, and multiple sealed phones can attract additional customs scrutiny.
Does a phone bought as a gift count for customs?
Yes. Calling a new phone a gift does not create a separate duty-free exemption. It remains an imported good and its value can count toward the passenger's allowance.
Do I have to declare a new iPhone?
If the phone or your total dutiable goods exceed the available allowance or otherwise require declaration, the 2026 regulations require the baggage declaration before entering the Green Channel.
Can I declare a phone before I arrive in India?
Yes. The 2026 regulations permit electronic baggage declarations through the Customs automated system and allow advance filing up to three days before arrival.
What happens if I don't have an iPhone purchase bill?
Customs can still determine a value using the available evidence. Keeping an invoice or electronic receipt is particularly useful for new expensive phones.
Can I put an iPhone in checked baggage?
Check the operating airline's rule. Air India's current restricted-baggage policy allows mobile phones in carry-on baggage but not checked baggage, so keeping phones in the cabin is the safest general approach.
Can I put a power bank in checked baggage?
No. Power banks and spare lithium batteries must travel in cabin baggage subject to the airline's battery capacity and quantity rules.
How many phones can I carry on a domestic flight in India?
A purely domestic flight does not involve importing the phones through Indian customs. Airline cabin-baggage, portable-electronics and lithium-battery rules still apply.