I can suggest all Mumbaikars who need postpaid connections with cheap calling rates to buy Loop Mobile, No one can beat their plans and call rates in Mumbai circle. But for extra services like 3G it is still not available, roaming on own network(not available except Mumbai), For caller tunes you can’t get many variety and you have to stick with what they had.
But over all if you want only for calls with loved ones and business people than this is the best mobile operator to choose.... Right now Iam using postpaid plan CSP99 (99Rs Rental+79Rs Gprs pack which is addon).. 200 Free local minutes & 200 Local/National SMS.. After free usage Local: Loop to loop 10ps, Other Mobile 30ps & landline 40Ps and STD: 50ps.... Dont forget to ask about new plans as they will bring new plans almost once in four months....