tender for operation, maintenance and guarding of gaseous chlorination plant at bs-i begampur under arsenic affected area surface based water supply project in south 24 pgs district under s.24pgs mechanical division phe dte. - operation and maintenance of the entire gaseous chlorination plant at boosting station-i under supervision of gas plant supervisor round the clock by engaging skilled and unskilled personal per shift along with supply of sundry. the cost includes the visit charges of gas plant supervisor for each visit in every 15 days in a month along with expert technician for servicing with effectfrom 01-08-2025 to 31-07-2026 ( bs-i ) n.b:- 1. quoted rate should be inclusive of esi, pf as per latest amendment and also comply with the notification no.- 06/stat/12rw/03/2023/lcs,dt. 02/04/2025 of the office the labour commissioner, govt of w.b. & reference memo no- phe/1095/o-5/16 (pt) dated- 22-05-2025 of the deputy secretary to the govt. of west bengal2. gst exempted related to article 243g/243w of the constitution of india and cgst rate notification no. 12/2017-central tax (rate) and corresponding wbgst rate notification no. 1136-ft, both dated 28.06.2017, as amended from time to time.