Gatimaan Express: Raftaar meri Pehchaan - Sajid Akhtar

Does ernakulam junction and mangluru junction have led coach position board installed on the platforms, I am coming from Coimbatore and I have to catch train no 12431 trivendrum rajdhani from one of these stations and both have just 5 minutes stop, i have luggage and a 4 year kid with me so I want to know where my coach would stop, please reply if any of these stations have these facility so I can choose between these 2 stations.....TIA

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