Airtel — poor network signal at multiple places. even in hyderabad

Address:

Hyderabad, Andhra Pradesh, 500089

From the last one year, i am facing netowrk issues. At home the signal is zero. I have complained multiple times.
Every time they told they are working on it.
If i am at home inlost connectivity to outside world. I should have go out of my home to make or recieve calls. This problem is happening in hyderabad.

Look at the below attached image for reference of network signal zero strength.

I am totally dependent on home wifi (Act fiber).