supply of crossing on psc sleepers in accordance with rdsos standard drawing no.t- 9792 with latest alteration amended upto date of tender notice, as percrossing on psc sleepers in accordance with rdsos standard drawing no.t- 9792 with latest alteration amended upto date of tender notice, as per,crossing on psc sleepers in accordance with rdsos standard drawing no.t- 9792 with l atest alteration amended upto date of tender notice, as per item specific guidelines & schedule of te chnical requirements for vendor approval for manufacture and supply of cast manganese steel(cms) c rossings/ weldable cast manganese steel(wcms) crossings- (tdg 0021) and indian railway standard s pecification for cast manganese steel(cms) crossings and weldable cast manganese steel(wcms) cros sings, serial no.irs: t-29(revised 2023) as per rdso letter no.ct/xh/policy dt 25-04-2023 with latest alteration as amended upto date of tender notice. [ warranty period: 30 months after the date of deli very ] ]