Indian Railway Catering & Tourism Corporation [IRCTC] — amount not refunded after cancellation of my ticket pnr no: [protected]

Address:	East Sikkim, Sikkim, 737101
Website:	IRCTC e-railway booking

I had booked a ticket from igatpuri stn (Igp) to new jalpaiguri (Njp) on 8/11/17 and cancelled on 10/11/17, but the refund has not been done to me till date. The details are as under:
Tranx i. D:[protected]
Pnr no: [protected]
Tr no/name : 12519/ltt kyq ac exp
Dt of journey: 07/01/18
Cancellation i. D : [protected]
Therefore i request you to kindly process for early refund pl.
Dhendup d lama