Which Internet Service Provider to get?

Hi guys recently I bought a new bsnl 3G connection but I hardly get 20kB/s speed even though there is full 3G signal and 3G tower is near my house,I went to bsnl office and they told me that there is some problem from the last 10 days,
Now I want to get a good ISP which will give me speeds more than 2mb/s with unlimited data usage,I am willing to pay Rs 700 to 800 a month
So,you guys got any suggestions

My location:-
Odisha>Cuttack

Thanks

Currently no ISP is providing 2 Mbps unlimited for Rs. 800. Not sure how many providers are available in Cuttak. I am using UL 750 from BSNL and getting 512 Kbps unlimited for Rs. 750 per month.

List of all plans and tariff by BSNL :

Bharat Sanchar Nigam Ltd.