Airtel has introduced new Rs. 519 and Rs. 779 recharge plans with a few benefits for subscribers. The Rs. 779 prepaid recharge plan has a validity of 90 days, whereas the Rs. 519 plan has a validity of 60 days. With the both the plans, subscribers will get 1.5GB of 4G data per day, along with unlimited local, STD, and roaming calls in India. With a recharge of Rs. 519 or Rs. 779, the telecom company is also offering Apollo 24/7 Circle…