Bharat Sanchar Nigam [BSNL] — signal drops since few days

Address:

Hyderabad, Telangana, 502305

Since few days I'm having issues with the 3g data. Inside house the network is nil. And sometimes it doesn't even work outside. I contacted customer care also but it doesn't seem to work. I even tried apn settings and also removed the sim and inserted again. I'm facing a lot of problems due to this. I think it's because of less towers here, but it is a government run service and they should not be such issues to customer. Please rectify this issue as soon as possible.