News How Officials Reach The Exact Train Compartment When A Chain Is Pulled The vacuum brake coaches have a valve in the top corner. When a passenger pulls the chain, the valve immediately rotates. Post navigation Previous: Karan Johar Says He Is On A Mission To Get Sara Ali Khan Married: ‘Hope You Find Green Flag Guys…’Next: Former Student Opens Fire in School in Kerala’s Thrissur, No Casualty More Stories News Flight Status, March 7: Gulf Flights Halted Amid War; IndiGo, Air India Among 183 Affected, Repatriation Specials On News Bengaluru Woman Ends Life After Fight With Husband Over Three-Day-Old Sambhar News Air India, IndiGo Resume Limited Flights To Gulf To Evacuate Stranded Passengers Amid Iran War