Bangalore Water Supply & Sewerage Board [Bwssb] — Outside sewage debris and water entering inside house

Address: No 27 4t cross,4th main Kothadaramreddy Layout Opposite to GJR international school Gate no 2,chinnapahalli,bangalore-560037

Sir,

Outside chamber toilet water and waste coming inside the house thru toilet drain our bed room and hall filled with outside chamber toilet water and waste.
I gave several times complaints but there is no action.
Today 8:30 pm my house filled with outside toilet debris and toilet water.
Due to BWSSB gave sewerage wrong connection. Last 1 year am facing same problem.
Kindly help me sir
S.VASANTHA KUMAR
MOBILE NO;[protected]
Basavaraj
Mobile no:[protected]