I use one time a Aircel sim card for batter tariff rate but after using this sim card I felling very bed because coverage problem is there.
Coverage problem is very high and no coverage arrived in my room so in my point of view very big problem for me and also the speed of internet is very low so you dont use this sim card for the purpose of internet.
It was very good in big city because coverage problem is not occur in city and tariff rate is always amazing in this company.
So at last I say it was very good in citys area and not good at village area.