Indian Railways — cancelled train ticket refund

I had a ticket in saraighat express pnr no.[protected] train no 12345 journey date: 04/09/2017 in the name of rubee bora. I lost my ticket on 2nd september, 2017.
On producing fir (Police complain) copy, railway issued me a duplicate ticket for the same.
The schedule train was cancelled by railway department.

Now when i produced the duplicate ticket in railway counter on 4th september 2017, they refunded me rs. 30 on duplicate ticket cancellation, after deducting rs.20 for cancellation.!!!

More importantly, they have not refunded any amount on my journey ticket amount (Rs.455.00) saying that as it is duplicate ticket.

What i should do now? Whether the refund rules of cancelled train followed by the department?
Whether this is justified.
Please revert and guide. I am having all the documents with me.

Regads,
Rubee bora
Email id: [protected]@gmail.com
Mobil no. [protected]