Gem Bids For Design, Precast Culvert For Km 8 To 11.5, Precast Culvert For Km 11.5to 15.00, Precast Trapezoindal Shape Line Drain For Km 8 To10.5, Precast Trapezoindal Shape Line Drain For Km 10.5 To12.5, Precast Trapezoindal Shape Line Drain For Km 12.5 To15.00