Guise, lots of my friends and relatives are using airtel broadband and all of them are very satisfying with performance of airtel in broadband sector.
As their opinions, net speed is very good with 3-4 mb downloading speed and 2-3 mb/s uploading speed. In case of customer support airtel have lots customer service stations in my city. However installment is also very easy.
So, if u want an broadband to complete every need, then must go with airtel.