Bangalore Water Supply & Sewerage Board [Bwssb] — sewage water from neighbouring building entering our house

Address: 14th C Cross West Of Chord Road 2nd Stage 2nd Phase, Mahalakshmi Layout Bangalore, 560086

I am residing at mahalakshmi layout bangalore at #407 14th c cross wcr 2nd stage 2nd phase mahalakshmi layout bangalore 560086 the neighbour from the road behind has his chamber near to our wall and there is excessive leakage and it could also enter our house kitchen please request you to kindly pay attention to this as this is inconvenient we have informed the building owner but has not really considered performing a repair giving reasons as there is no person to take care of the repair and undertaking. If required this has to penalised to the neighbour.