Indian Railways — Couldn't get my cancelled train refund.

Address:

New Delhi, Delhi, 110014

Hello sir,
I have booked a ticket on 8th march 2016 in shaheed express for 1st july 2016 from delhi to siwan jn.
But due to some reason train diverted from boarding station (Delhi) at last moment.
Then i filed tdr online (This ticket had been booked online.).
But now it has been over 90 days but i didn't get my refund yet.
I called to railway customer care where they gave me a phone number which is [protected].
Over phone the person gave me another number which is wrong.
Kindly help me out to get my refund back.
Below are the required ticket details.
Pnr no:-[protected]
Cancellation id:-[protected].

I am also attaching the ticket snapshot below.