Reliance sim is one of the good operators in india having wide range of its network and tower but still it manages unavailability of its network in some area
It has fastest network and its call charges are surely less as compare to others
Its one of the best point I switched my idea to reliance sim is that it offers 10 gb of internet with 3g speed for just only 358rs only for 28 days
But it has a condition u should port your sim to the reliance and thats it
For internet lovers its very affordable