Manufacturing and Supply of Pre- stressed Mono Block Concrete sleeper ( Pre- tensioned type ) for Broad Gauge ( 1673mm ) as per RDSO Design for 1 in 16 PSC T/ O Sleepers ( Sets ) to RDSO Drawing No. RDSO/ T- 5691, Alt- 3 or latest alteration and to IRS Specification No. IRS T- 45, ( Fourth revision- March 2021 ), corrigendum no 2 or latest alteration/ amendments made by Track Standard Committee as amended time to time during the currency of the contract, duly loaded into wagons/ Road vehicles.