Operation And Maintenance Sewerage Network Including Remedial Of Defects If Any During O And M Period In Bhagwati Nagar, Mohinder Nagar, Bhawani Nagar, Ashok Nagar, Sharika Nagar, Gole, Puran Nagar, Kailash Nagar, Patel Nagar, Sham Vihar And Adjoining Areas Of Talab Tillo