supply of manufacture and supply of prestressed monoblock concrete sleepers sets ( pretensioned type ) for bg fan shaped turn out 1 in 12 as per rdso drg. no. t-4218 / t-4732 alt. upto date ( for general layout ) and part drawing thereof to suit 60 kg. rails as amended up to date as per irs specification t-45-2021 ( 4th revision march 2021 ) with corrigendum no. 2, as amended up to date including loading into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ] dy ce ( c ) , ncr uttar pradesh 11.00 set dy.ce / c / agc, ncr uttar pradesh 88.00 set dy.ce / c / ald, ncr uttar pradesh 245.00 set sse / c / p.way / cnb, ncr uttar pradesh 19.00 set