tender for operation & maintenance of chirulia chatla zone-iii & its adjoining mouzas water supply schemes distribuion system including rising main, fhtc, ohr & deployement of manpower, checking of status of supply in the command area, repairing of leakages bursting pipe line , including round the clock watch & work to ensure supply of potable water through out the command area of the scheme, after successfully completion of the scheme in all respect and as per direction of eic within egra-i block under digha sub-division,of tamluk division phe dte. ( payment of valve operators to be made as per approved phe rate) for 12 ( twelve) months