After using several connections atlast I have settled for idea postpaid for last 5 years. My connection is in corporate group and it is having unique features which other operators are not giving till date.
My plan is enterprise 99 where I have to pay rs 99+ s.tax every month. Where in this plan I get 400 free call, 200 sms, 20 paisa minute after free usage. Really idea has made my huge billing into very low one. Moreover customer support is very good, 2g net in my area is very fast, network is little disturbed while load shedding but in other areas it is best.