3G has been here in India for a while , but the rates where quite high for an average Indian cellphone user to afford. But during the last few days most carriers slashed their 3G plans , though its no way comparable to 2G ( and I am sure it wont be in any time soon) yet its somewhat a reasonable tariff for a smartphone user. So what I have done is compiled all major carriers and their 3G tariffs
Vodafone was the recent one to slash the tariff
Right tariff plan is for USB data card
Comparison based on 1 GB monthly usage
So based on the comparison , tariff wise , Tata Docomo , is the best plan as its a combo plan , giving data as well as voice .
(Most of the data is from the respective carrier sites , kindly call up their customer care for special offers and ways to recharge to avail plans)
Bottom line : Most economic plan is not always the best plan , choose a service which is economical at the same time customer friendly, with a good support.