Now there is more reasons for people in Kerala to join with the Airtel family by using Mobile number Portability (MNP). Now you can join airtel and enjoy reduced call rates. Call rates as low as 10p/min. You can make calls to local airtel numbers at 10p/min and calls to other local mobile numbers can be made at 30p/min. All these reduced call rates can be enjoyed for a period of 90 days. So it is really an excellent offer from Airtel to promote mobile number portability in the state. For more details call 18001031111. Click here to know the procedure for porting your mobile number.