supply of microphone unit, platform and track view camera and display unitmicrophone unit, platform and track view camera and display unit,microphone unit as per medha part no - sp675m701014. warranty as per railway terms and conditions [ warranty period: 30 months after the date of delivery ] ] , platform and track view camera for cctv as per m/s medha part no.sp675m801005 f or use in 3-phase memu rakes fitted with m/s medha igbt propulsion system make-medha. warranty as per railway standard terms and conditions only. [ warranty period: 30 months after the date of delivery ] ] , display unit for cctv for 3 phase memu rake as per m/s, medha spare parts price list code n o. sp3675m801002. [ warranty period: 30 months after the date of delivery ] ]