Many people are our there who want to switch from MTNL to reliance. There are only a few lucky ones who get uninterrupted service from MTNL, for the others the next best bet is reliance.
In my case, though the service center people are quick to send the lineman/ internet man but they are incompetent to fix the problem. Even after 2 weeks of torture including making numerous calls, the DSL light keeps on stopping and they just can't fix it.