supply of design ,manufacture,supply,installation,testing,commissioning and maintenance of heavy duty reversible type escalator , design ,manufacture,supply,installation,testing,commissioning and maintenance of heavy dut y reversible type escalator for semi out door application for the use of railway passengers as per rdso speci fication no.rdso/pe/spec/tl/0095 (rev 4)-2026 or latest with prototype test,ip based video survellance of c ctv camera to be installed as per rdso spec with 2 years warranty along with provision of gprs enable sm s message to minium 10 pre specified phone number for identified unusual occurrences should be avilable in the controller.necessary rites/rdso inspection certified should be produced along with supply and related c harges to be born by contractor [ warranty period: 24 months after the date of delivery ] ] , amc of heavy duty reversible type escalator [ warranty period: 2 years, amc period: 5 ye ars, rate of discounting: 10 % ] ]