procurement of psc sleeper for renovation and modification of existing post wagon tripler railway track to be used as fly ash line no.2 at stps,wbpdcl under approved capex proposal 2024-25 under cip department, stps , b.g prestressed concrete sleeper t -2496 category - 1 as per rdsos drg. no. additional data: supply and delivery of prestressed monoblock concrete sleepers of category - 1 as per rdsos drg. no. t -2496 with latest alteration if any, duly inspected by authorised inspecting agency at manufacturers work site. the rate includes cost of materials, labour, loading, unloading, stacking at stps plant site, taxes, octroi etc. complete in all respect. , b.g prestressed concrete sleepers t-4186 (category i) as per rdso conforming to irs specification. additional data: supply and delivery of b.g prestressed monoblock concrete sleepers (category i) as per rdso drawing no.t-4186 conforming to irs specification. the rate includes cost of materials, labour, loading, unloading, stacking at stps plant site, taxes, octroi etc. complete in all respect. , prestressed concrete sleeper t -4148 category - 1 as per rdso specification for level crossing additional data: supply and delivery of prestressed monoblock cocrete sleepers of category - 1 as per rdsos drg. no. t -4148 for level crossing with latest alteration if any, duly inspected by authorised inspecting agency at manufacturers work site. the rate includes cost of materials, labour, loading, unloading, stacking at stps plant site, taxes, octroi etc. complete in all respect.