GoAir — lost my boarding pass

Address:

Leh, Jammu and Kashmir, 194101

I have travelled from Leh to Delhi by Go air flight G8 220 on 21 October 2018..employer is asking the produce the boarding pass to settle the travel bills. I have somehow lost the bill. I will be thankful if you will help me to get the duplicate boarding pass for the flight. Flight was booked in defence quota on 21 Oct 2018.
BOOKING REF-C3PZSF

Thanking you.

Regards,
Sonam Singh
Flight Lieutenant