I am here with a awsome app name true balence true balence give you real talktime to any operatot like airtel, idea, telenor.
So what you have to do.
Step1.download true balance from play store
Step2.Register with your mobile number and write this ( 2TPECW9U ) in reffer code
AND ALL DONE
This is a spicial reffer code that can also give you upto 200 talktime.