Bangalore Development Authority [Bda] — Open toilet drains from illegal public toilet on bda land is flown behind our house even after several complaints not fixed

Address: 4th H Block ,BDA Layout, Bsk 6th Stage, Gubbalala, near 80 feet road, behind Sahara Layout,Subramanyapura post Bangalore 560062

People have built ilegal public toilet behind our house which is built on bda land and flowing open toilet drain behind our house. We had lodged complaint to bwssb and they had put drainage connection pipeline behind the house but people are unwilling to connect that drain to that pipe and flowing those drains as it is behind house gutter. Please take strict action on this as open toilet drains near residence are illegal and with public toilet built on bda land the property doesn't belong to them. The illegal toilet either must be demolished or the pipe need to be connected to drain pipe which is already there.please resolve this issue soon as it is pending from long time even after lodging several complaints to different authorities.