Indian Railways — Cancelled ticket amount not refunded

Address:

Mumbai City, Maharashtra, 400010

Hello, on 06 dec 2016, i have cancelled a counter ticket (Pnr - [protected]) journey dated 13 dec 2016. I haven't still received the refund in my bank account. I have submitted a cancelled cheque in my name also to the ir. After mutiple visits at ccm, they have given me a reference number[protected] and validated that refund would be given. But when?