I am having a Dolphin connection since 2001. Since then I have taken two connections (mobile), and both were Dolphin. The service is as good as compared to Hutch and I beleive it is much better tha Airtel and IDEA.The customer care is helpful, and you do not have to keep listing to good music (increasing your bill) and wait for the CC executive.
The CC is very helful. Ones I had a network problem at my place of residence. Th next day after I complained, the technical team was there at my place to note the problem and they got it rectified .Roaming is the best and the cheapest.Although some features are not there, but I hope MTNL will soon come out with them.Billing is perfect with no problems. the bills are easy to understand and they do not have any errors.I give full marks to MTNL Dolphin