In continuation of my earlier similar post, I've a confirmed ticket on 12907 from BDTS-NZM for 27/Nov. However due to an upcoming change of plans, I will most probably need to board this train from BRC (Vadodra). Since I'll not board the train at my original source station of BDTS, how do I ensure that the TTE will not allot my berth to someone else either at BDTS or BVI?
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(For this travel, I'd booked an eTkt from irctc site)