take the plan of vodafone according to ur monthly usage.if u r usage is less take 199 plan(but the call charges r more / min).if more usage take theother plan like 299,399,etc.
Thats what VF&Airtel charges am using docomo its 20ps for 20secs to any n/w...just came to know that corporate plans are cheaper&they have some packs which are given for free...else i think prepiad is most economical way to go...:hap2: