I am using bsnl 3g it’s network range is very poor I very disappointed with thier service.if I want some help of customer care they never respond.and not give accurate solution.which is make me very disappointed and also if I sayed about network coverage I’ll say it’s very bad when I go some outer palace it’s show no service that’s very hated.
If we want some changes like conversion between 2g to 3g or 4g they provide lot’s of paper work which is very time consuming.they have to stop irritating us.