I am using bsnl network from last 4 years. Bsnl has cheapest plans among all other operators. This is the main reason that I am using bsnl till now.
Bsnl coverage is not good in several areas but in my area it is good because of tower located nearby. Bsnl 3g speed is very good in day time but in night speed becames lil bit slow. The speed is manageable. 3g plans is very cheap. Plans are starting from only 14 rupees. Recently bsnl lounches soft 4g which is very good step. I hope in future bsnl will provide more cheapest plans and good services.