If you’re arriving at Indira Gandhi International Airport (DEL), you’ll find several options for getting mobile internet. Travelers can purchase a local prepaid SIM card after landing or use an India eSIM that is installed before departure and activates shortly after arrival.
While airport SIM cards are convenient, they usually require identity verification and activation can sometimes take longer than expected. Many international visitors now choose an eSIM to avoid queues and start using mobile data almost immediately.
Quick answer: you can buy a SIM card at Delhi Airport, but an India eSIM is usually faster because it can be installed before you travel and activated within minutes after landing.
Top India eSIMs
Can You Buy a SIM Card at Delhi Airport?
Yes. Delhi Airport has telecom counters in the international arrivals area where travelers can purchase prepaid SIM cards.
Availability depends on flight schedules, arrival terminal and operating hours, so not every counter is always open.
What Documents Do You Need?
Foreign visitors are normally asked to provide identification before purchasing a local SIM card.
- Passport.
- Valid visa or entry permission.
- Passport-size photo (occasionally requested).
- Local accommodation details (may be requested).
The exact requirements depend on the operator and current regulations.
How Long Does Activation Take?
Unlike many travel eSIMs, local SIM cards are not always active immediately.
| Option | Typical Setup Time |
|---|---|
| India eSIM | Usually within minutes after arrival |
| Airport SIM Card | May require identity verification before activation |
If you need internet immediately for booking transport or contacting your hotel, an eSIM is often the faster choice.
SIM Card vs India eSIM
| Feature | Airport SIM | India eSIM |
|---|---|---|
| Available before arrival | No | Yes |
| Physical SIM required | Yes | No |
| Passport verification | Usually required | No purchase at airport |
| Airport queue | Possible | None |
| Keep your home SIM | Usually no | Yes |
| Installation before travel | No | Yes |
Why Many Travelers Choose an India eSIM
- Install before departure.
- No airport queues.
- No physical SIM card.
- Keep your existing phone number.
- Works with Dual SIM phones.
- Fast activation after landing.
- Ideal for short holidays and business trips.
Can You Keep Your Primary SIM?
Yes.
With an India eSIM you can continue using your regular SIM for calls, SMS and banking verification codes while the eSIM provides mobile data.
To avoid roaming charges, disable Data Roaming on your primary SIM.
Does WhatsApp Work?
Yes.
WhatsApp continues using your existing phone number while your India eSIM provides internet access.
You do not need an Indian phone number to continue using WhatsApp.
Recommended Phone Settings
| Setting | Recommended Value |
|---|---|
| Mobile Data | India eSIM |
| Calls | Primary SIM |
| SMS | Primary SIM |
| Data Roaming (India eSIM) | ON |
| Data Roaming (Primary SIM) | OFF |
| Network Selection | Automatic |
| APN | data.esim if required |
India eSIM APN Settings
Most phones configure the APN automatically. If manual configuration is required, use the following settings.
| Field | Value |
|---|---|
| APN | data.esim |
| Username | Leave blank |
| Password | Leave blank |
| Authentication | None |
Travel Tips After Landing
- Download offline Google Maps before departure.
- Book airport transport using mobile data.
- Keep your passport easily accessible if buying a SIM.
- Install your eSIM before your flight.
- Carry a power bank.
- Keep your QR code until your trip ends.
Related India Guides
- India eSIM
- eSIM at Delhi Airport
- Internet at Delhi Airport
- WiFi at Delhi Airport
- Best SIM Card for India
- Local SIM vs eSIM in India
FAQ
Can I buy a SIM card at Delhi Airport?
Yes. SIM cards are generally available from telecom counters in the international arrivals area.
Do I need my passport?
Yes. Foreign visitors are normally required to present their passport when purchasing a local SIM card.
Is an eSIM faster than buying a SIM card?
Yes. Because it can be installed before departure, an eSIM usually lets you get online much sooner after landing.
Can I keep my existing phone number?
Yes. With a Dual SIM phone you can keep your primary SIM active while using an India eSIM for mobile data.
What APN should I use?
If manual configuration is required, use data.esim.
Final Recommendation
Buying a SIM card at Delhi Airport is possible, but it often involves waiting in line and completing identity verification. If you want internet as soon as you land, an India eSIM is usually the simpler and faster solution.
Install your eSIM before departure, enable it after arrival, turn on Data Roaming and use data.esim if manual APN configuration is required.