Activating your India eSIM is quick and usually takes only a few minutes. If you’ve already installed your eSIM before leaving home, you only need to enable it after arriving in India to start using mobile data.
This guide explains exactly how to activate your India eSIM on both iPhone and Android devices, which settings to change and what to do if your mobile data doesn’t work immediately.
Quick answer: after arriving in India, enable your India eSIM, select it for Mobile Data, switch on Data Roaming and leave Network Selection on Automatic. Your phone should connect within a few minutes.
Top India eSIMs
Before Activating Your India eSIM
Before switching on the eSIM, make sure that:
- Your eSIM has already been installed.
- Your phone supports eSIM.
- Your device is carrier unlocked.
- You have arrived in India or are inside the coverage area of your plan.
- Your primary SIM is still installed if you want to keep your regular phone number.
Your QR code and installation instructions remain available in your NoveSIM account if you need to review them.
How to Activate an India eSIM on iPhone
- Open Settings.
- Select Cellular.
- Turn on the India eSIM.
- Select Cellular Data.
- Choose the India eSIM.
- Enable Data Roaming.
- Disable Allow Cellular Data Switching.
- Leave Network Selection on Automatic.
- Wait a few minutes while the phone registers on the network.
How to Activate an India eSIM on Android
The menu names differ slightly between manufacturers, but the activation process is almost identical.
- Open Settings.
- Go to Network & Internet, Connections or SIM Manager.
- Enable the India eSIM.
- Select it for Mobile Data.
- Enable Data Roaming.
- Disable Automatic Data Switching.
- Leave Network Selection on Automatic.
- Wait several minutes for the network connection.
Recommended Mobile Settings
| Setting | Recommended Value |
|---|---|
| India eSIM | Enabled |
| Mobile Data | India eSIM |
| Calls | Primary SIM |
| SMS | Primary SIM |
| Data Roaming (India eSIM) | ON |
| Data Roaming (Primary SIM) | OFF |
| Automatic Data Switching | OFF |
| Network Selection | Automatic |
| Preferred Network | 5G Auto or 4G/LTE |
| APN | data.esim if required |
India eSIM APN Settings
Most devices configure the APN automatically. If the phone connects to the mobile network but websites and apps do not load, manually enter the following settings.
| Field | Value |
|---|---|
| Name | NoveSIM |
| APN | data.esim |
| Username | Leave blank |
| Password | Leave blank |
| Authentication | None |
How Long Does Activation Take?
Most travel eSIMs connect within a few minutes after your phone detects a supported mobile network. Occasionally, the first connection can take slightly longer depending on network conditions.
If your phone still isn’t connected after several minutes, turn Airplane Mode on for about 30 seconds and then switch it off again.
Can You Keep Your Primary SIM Active?
Yes. Most modern Dual SIM phones allow you to keep your regular SIM card active for voice calls, SMS messages and verification codes while your India eSIM provides mobile data.
To avoid unexpected roaming charges, disable Data Roaming on your primary SIM.
Does WhatsApp Work?
Yes. WhatsApp continues using your existing phone number because the India eSIM only provides the internet connection.
Your chats, contacts and call history remain unchanged.
What If the India eSIM Doesn’t Activate?
- Confirm the eSIM is enabled.
- Select it as the Mobile Data SIM.
- Enable Data Roaming.
- Turn off Automatic Data Switching.
- Verify the APN is data.esim.
- Leave Network Selection on Automatic.
- Turn Airplane Mode on for 30 seconds.
- Restart your phone.
- Wait a few additional minutes for network registration.
Do not delete the eSIM profile during troubleshooting because many QR codes can only be installed once.
Common Activation Mistakes
- Leaving Mobile Data on the primary SIM.
- Forgetting to enable Data Roaming.
- Deleting the eSIM after installation.
- Using a carrier-locked phone.
- Turning on Automatic Data Switching.
- Not checking the APN if mobile data doesn’t work.
Travel Tips
- Install your eSIM before departure.
- Activate it only after arriving in India.
- Download offline Google Maps before traveling.
- Carry a power bank.
- Use hotel WiFi for software updates.
- Keep your QR code until your trip ends.
- Disable roaming on your primary SIM.
Related India Guides
- India eSIM
- How to Install an India eSIM
- India eSIM for iPhone
- India eSIM for Android
- India eSIM APN Settings
- India eSIM Not Working
FAQ
When should I activate my India eSIM?
Install the eSIM before departure, but activate it after arriving in India by enabling it for Mobile Data and turning on Data Roaming.
Do I need to enable Data Roaming?
Yes. Travel eSIMs normally require Data Roaming to be enabled on the eSIM profile.
Can I keep my regular SIM active?
Yes. Most Dual SIM phones let you use your primary SIM for calls and SMS while the India eSIM handles mobile data.
Will WhatsApp keep my current number?
Yes. WhatsApp continues using your existing phone number.
What APN should I use?
If manual configuration is required, use data.esim.
Final Recommendation
Activating an India eSIM is a simple process that usually takes only a few minutes. Once you arrive, enable the eSIM, select it for Mobile Data, switch on Data Roaming and let your phone connect automatically.
If mobile data doesn’t work immediately, verify that the APN is data.esim, keep Network Selection on Automatic and restart your device if necessary.