Kolkata Local - আমি তোমাকে ভালবাসি

not possible after ticket booked.

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No. You'd have to change it at the PRS.

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so only at prs
is id proof mandatory for boarding change

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If the ticket is booked, u hav to change it frm PRS

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if u need to change your BP, go to d nearest PRS with etkt printout and ORIGINAL ID, and give application for change of BP. Plz note that you need to change BP atleast 24 Hrs prior to TRAIN DEPARTURE FROM ITS STARTING STATION and not your intended boarding point

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