Vaigai வந்துருச்சு, ஆசையில் ஓடி வந்தேன்

hi my pnr number is 4246625733 for the chennai-luknow express. i was in waitlist so i did not board the train. should i manually cancel my ticket or will irctc automatically refund it bcos i did not board the train and i was on waitlist. thanks.

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