supply of supply and installation of updated public announcement module with the following announcement (supply and installation of updated public announcement module with the following announcement (,supply and installation of updated public announcement module with the following announce ment (kind attention please, smoke has been detected in the coach. brakes have been applied on the train for your safety. please move from this coach to other coaches. when the train stops, get off the coach caref ully and stand away from the tracks. be careful, that you are not in danger from any other train passing thr ough adjacent railway lines) in coaches provided with advance hi-tech make fsds system. [ warranty p eriod: 30 months after the date of delivery ] ] trainset material management, maharashtra 10.00 coach set