Tariff Wars - Airtel vs BSNL vs Tata Docomo 3G Tariffs Comparison

We decided to compare the 3G Tariffs from Airtel , BSNL and Tata Docomo in the Bangalore,  Karnataka Circle. This circle was chosen because it is the only circle maximum Operators are offering 3G as of today.
Reliance was not included because it has launched 3G in this circle.This comparison only takes into account the Prepaid tariffs and our main focus is on the Data Usage charges. We have included Video Calling charges too. We have omitted the basic cost such as the SIM procurement charges.
While we have paid lot of attention to the numbers in this comparison , feel free to let us know in case you find any mistake. Click to catch more on this topic