OK, I am prepaid all this while (been 4 years i guess) and this is the plan I get:
Provider - Vodafone
Talk plan code - No idea (no pun intended)
Monthly Rental - Rs.69/- (in the form of a recharge voucher)
M2M - to Vodafone : 30paise/min; others : 69paise/min
M2L - Re.1/min
STD - Rs.1.5/min
SMS Charges - local 2paise; National : 50paise during day, 25paise at night
Free Local mins - None
Free Local/National SMS - None
And as i recharge for Rs.402/-, i get full talktime without any tax/service charges.

essentially, i get all the goodies at Rs.69 monthly rental