Gem Bids For Facility Management Service- Manpower Based (version 2) - Industrial; Operation And Regulation Of All Gates Of Main Barrage And Head Regulator Gates Of Farakka Barrage Round The Clock; Highly-skilled , Facility Management Service- Manpower Based (version 2) - Industrial; Operation And Regulation Of All Gates Of Main Barrage And Head Regulator Gates Of Farakka Barrage Round The Clock; Skilled , Facility Management Service- Manpower Based (version 2) - Industrial; Operation And Regulation Of All Gates Of Main Barrage And Head Regulator Gates Of Farakka Barrage Round The Clock; Semi-skilled