Need advice on getting prepaid 3G (phone + data) service in Kolkata

[bongster]

Hi all,

I will be in Kolkata for about a month in June 2011.

Can some one suggest a reasonably priced reliable prepaid 3G cellular plan (including data off course) to use while I am there?

I plan to use my Google/HTC Nexus One android phone that I use on TMobile USA.

Courtesy of this post:
How to Tell Which nexus One you have (AT&T, T-Mobile Etc) - Android Help

I know my phone is
"PN99100 -- 900 MHz, AWS, 1700 and 2100 MHz such as T-Mobile US and Vodafone in Europe"

So in theory it should work in Kolkata with BSNL 3G.

Thanks in advance!