Annual Operation and Maintenance of 07 Nos. of RO Purifiers at Time Office, Shanti Nagar, HEMM Workshop, SILO, Deulabera Colony, Sharma Chowk Colony and Lingaraj Township of Lingaraj OCP, Lingaraj Area, for a period of 02 (Two) Years. Annual Operation and Maintenance of 07 Nos. of RO Purifiers at Time Office, Shanti Nagar, HEMM Workshop, SILO, Deulabera Colony, Sharma Chowk Colony and Lingaraj Township of Lingaraj OCP, Lingaraj Area, for a period of 02 (Two) Years.