I am using Airtel no From 2013.I also use a vodafone alternative no.It seems to me that Airtel Is much costly than the otherone( i.e.vodafone) .
It's network system is somehow good but its call rates are very expensive.It is like a burden on me yet it is my helplessness that I can't drop it to use because I m studying outside.When my study'll be completed i'll surely drop this damn operator.