Hyderabad Metropolitan Water Supply & Sewerage Board [Hmwssb] — clearing of drainage block

Sir/ madam,
I am resident of mig-ii-55, 9 th phase kukatpally housing board. The main drainage line blocked. Given complient on 11 apr & 20 the april 2018 but no one takes responsibility. The drain water sinking into ground at coming into water meter pit from broken broken drainage pipe. So please help in clearing.

Thanks

S harinath
Mig-ii-55
[protected]