Indian Railway Catering & Tourism Corporation [IRCTC] — not getting refund on ticket cancellation after 20 days

I booked tickets by my debit card on irctc website and cancelled them. Tickets got cancelled but the amount is yet not been credited in my account. I have sent several mails to irctc but did not get the money back. Following are the ticket details-
Ticket 1
Pnr: [protected]
Transaction id: [protected]
Rfnd amt 3850.0
Settlementid [protected]
Actual refund date 05-oct-2017
Bank rfnd txn id [protected]

Ticket 2
Pnr: [protected]
Transaction id: [protected]
Rfnd amt 85.0
Settlementid [protected]
Actual refund date11-oct-2017
Bank rfnd txn id[protected]

Please check the issue and try to credit the amount in my bank account asap.

Thanks