Mahanagar Telephone Nigam [MTNL] — dolphin poor connectivity network or no network, frequent call drop

Address:	Mumbai City, Maharashtra, 400094
Website:	Dolphin network

I am staying anushakti nagar, ragamala complex, barc, mumbai 400094.
I am facing frequent mtnl dolphin call drop or no network connectivity for last two years. Two years back, there was no such problem. I had made many complaints to mtnl without any improvement in network coverage. I am not alone, facing this problem but whole ragamala complex of anushakti nagar are facing this problem. Mtnl does not respond to our complaint.