Annual Operation And Maintenance Of Sand Filters, Disinfection System And Valve Operation At Paharganj, Ram Nagar Water Complex, Msrr, Dlt, Lahori Gate, Thompson Road Near Pf-16 And Rpsf Water Complex In The Section Sse/w/ndls And Annual Operation And Maintenance Of Rapid Sand Filters, Chlorination, Cleaning Of Water Tank And Different Valve Operation At Different Water Installation Points At Anand Vihar Railway Terminal In The Section Sse/w/anvt Under Aden/ndls.
