supply, installation, testing & commissioning of passenger escalator complete with all associated accessories, safety devices etc., as per rdso specification no. rdso / pe / spec / tl / 0095 ( rev 3 ) -2019 or latest. cost includes free maintenance of two ( 02 ) years during warranty period after commissioning of passenger escalator. cost also includes all required ancillary civil works. annexure- 1 of rdso specification are attached separately for each escalator location. annual maintenance contract ( amc ) : comprehensive amc for a period of 10 years as per relevant clauses of rdso specification no. rdso / pe / spec / tl / 0095 ( rev 3 ) - 2019 or latest. the bidders are required to quote rate as per the format given in annexure-a and must upload the same along with their offer to enter into amc on expiry of warranty period. [ warranty period: 24 months after the date of delivery ] , comprehensive annual maintenance contract for passenger escalator complete with all associated accessories, safety devices etc., as per rdso specification no. rdso / pe / spec / tl / 0095 ( rev 3 ) -2019 or latest warranty period: 2 years, amc period: 10 years, rate of discounting: 6 % at ( location ) sse / el / dev / ada , ser west bengal 9.00 numbers