Reliance GSM GPRS plan cheapest for monthly internet for Nokia C6-01

Hi I have Nokia C6-01 mobile phone and I would like to know cheapest GPRS mobile plan because I have so many application installed and many of them uses internet while using them. My internet usage is not big but I need it all the time so something cheap but monthly can be good. I hardly use 500 mb data in whole month so I don't Rs. 99 plan with 2.5 GB data usage. I never use that much amount. Is there any cheaper alternative for this whcch works full month ?

hi..
i hv one best offer for u cheapest gprs pack is tata docomo ..it's cheapest pack that gives u 2GB in 48rs...for a month..