I compared Idea, Reliance GSM and Uninor prepaids in Gujarat circle.
There are many topups, recharges and schemes are available but I took only those which are meaningful and comparable. Here is the comprision
Idea : Topup recharges : Rs.210/Value 210, 310/310, 400/410, 550/560
Reliance Topup : 85/95, 200/210, 310/340, 510/560
Telenor Topup : 60/60, 128/150, 168/200, 358/410, 518/628
Reliance base rate : 2p/Sec Local, 2.5p/Sec STD
Telenor base rate : 1Re/min, 1.5 Rs/min
Here is the killer :
Uninor : Tariff Voucher : Rs. 4 for 1p/Sec anywhere
Other tariff vouchers (All vouchers are compared on 28 days duration):
Idea : Rs.44 (any mobile anywhere 1p/sec for 50days), Rs 27 (1p/sec for 28days), Rs. 178 (1 GB 2G)
Reliance : Rs. 197 (300 min anywhere, then 50p/min, 1 GB), Rs. 49 (35p/min anywhere, Roaming free), Rs. 29 (29p/min anywhere), Rs. 149 (3GB 2G)
Telenor : Rs. 4 (1p/sec anywhere), Rs 12 (1p/2sec any local), Rs. 18 (30p/min STD, 1st min of the day 60p/min), Rs. 43(30p/min anywhere), Rs 97 (1 GB)
Vodafone and Airtel tariffs and topups are similar to Idea.
Clearly Telenor has the best topup value and tariff schemes. But it comes along with cheap ad play.
The 2nd best is the Reliance.