[Resolved]  BSNL 3G Data Card — Bsnl 3g poor speed , no connectivity

Address:

Bangalore, Karnataka

I bought the Bsnl 3g data card 2 days back in Koramangala 4th block from Bsnl customer centre, Bangalore and since then I have not been able to connect to the internet for 5 minutes at a stretch. It gets disconnected very often and speed is mostly around 10-15 kbps , often going down to 0, whereas my roommate has Airtel 3g which works perfectly fine. Even connecting to intenet in laptop via phone has better connections.
Is there a way out??