supply and installation of one coach set of entrance hand rail for train set mc tc mc2 ndtc ec ndtc ec2 ndtc ec3 coaches to drg no train18 dtc ac 6 4 001 alt e col iv packing instruction pi012 warranty period 30 months after the date of delivery supply and installation of one coach set of entrance hand rail for train set mc tc mc2 ndtc ec ndtc ec2 ndtc ec3 coaches to drg no train18 dtc ac 6 4 001 alt e col iv packing instruction pi012 warranty period 30 months after the