Indian Railway Catering & Tourism Corporation [IRCTC] — refund issue of failed transaction

Dear sir,
I was booking train ticket from nizamuddin (Nzm) to katni (Kte) for date 02.04.2018 and payment done from
Netbanking of central bank of india. Money of rs. 2960 got debited from account but transaction failed. Also
Checked in booked ticket history but transaction failed showing for transaction id: [protected].
Please refund my money of rs 2960 debited through netbanking of my account. It is more than 1 month now still i've not got refund

Detail of transaction:

Transaction id : [protected].
Date:01.04.2018

Detail of irctc transaction

Transaction id: [protected].
Train no./name: 12182/nzm jbp exp date of booking: 01-apr-2018
Date of journey: 02-apr-2018

From: nizamuddin (Nzm)
To: katni (Kte)
Boarding at: nizamuddin (Nzm)
Resv upto: katni (Kte)
Quota: tatkal (Tq)
Class: 3a
Payment status: payment failed from bank name: central bank of india
Reservation status: not booked
Transaction amount:2960.0
No. Of adults: 2
Ticket type:e-ticket

Thanks & regards
Puneet jain