Bangalore Water Supply & Sewerage Board [Bwssb] — Sewerage pipe blocked in front of my building

Address: 469, Kothanur main road,, 7th phase, J P nagar, RBI Layout, Bengaluru, 560078.

My building is 469 Kothanur main road, RBI layout, J P N agar 7th phase, , Blore 560078.

The sewerage is blocked in front of my building and reverse flowing into our sanitary drainage.

Please unblock and clean the main sewerage pipe immediately.

Thanks
Radhakrishna