Steps to activate Mtnl 3G and settings for Mumbai Circle :
1) Activate your mtnl 3g.
2) Go into your iphone Settings -> Cellular Data
3) Select APN Settings and enter following details
4) APN : mtnl.net
5) User Name: type nothing leave blank
6) Password: type nothing leave blank.
Steps to activate Mtnl 3G and settings for Delhi Circle :
1) Activate your mtnl 3g.
2) Go into your iphone Settings -> Cellular Data
3) Select APN Settings and enter following details
4) APN : mtnl.net
5) User Name: mtnl
6) Password: mtnl123
For any assistance please dial 1503 (toll free) from your mobile or 9869012345 or (022)22221503 from any other landline/mobile.