supply of set of aerosol based fire detectionset of aerosol based fire detection,supply and installation of set of aerosol based fire detection and suppression system cartrid ge on 937 coaches (driving trailer coaches and trailer coaches) of m/s siemens and m/s medha emus as per annexure g-1 of rdso specification no. rdso/pe/spec/ac/0192-2018 (rev-1) and rdso letter no. el/7. 1.108/mssbc dated 17.09.2021. scope of supply and installation as per annexure attached. all necessary modification and accessories required for the installation of this item shall be within scope of supplier. [ w arranty period: 30 months after the date of delivery ] ]