Thanks, I will book in this train. I have one question, please try to answer. This train reaches PNBE at 5:40 and I want to book in 18184 for onwards journey till JSME in CC. In case 12310 gets delayed and I miss 18184, can I travel in any other train (lets say 13332 leaving PNBE at 8:40) on the same ticket till JSME in AC Coach? Do I need to get certificate from TTE or someone in case of e-ticket.? Thanks in advance.