Bharat Sanchar Nigam [BSNL] — landline is completely out of functioning

Address:

Ernakulam, Kerala

Area std code-0485
Phone no-2251796
It is out of order from march 30, 2017 and in same condition till yet. I register my complaint many times through complaint booking system and also directly at bsnl office at koothattukulam. They do not take any initiative to resolve my complaint. When i asked about this they told that this is because of cable fault. But all other land lines in my area are still functioning except mine.
I request to consider my complaint and take necessory action against the irresponsible behaviour from the concerned people and also make my land line connection functioning.