Spice Jet Airlines — damage to checked in luggage

On June 18, 2019, I Rahul Malik took flight from New Delhi to Bangkok, flight number SG253 (DEL-CCU) & SG83 (CCU-BKK). It was a connecting flight. During the course of the trip, my checked luggage was damaged beyond repair.

This is unacceptable. I would like to lodge a formal complaint concerning the unprofessional behavior of your baggage handlers, and to request full compensation for the luggage that was destroyed. I am listing the luggage that was damaged during the flight, along with its approximate market value.

Black color suitcase (8000 INR)

I have already lodged a complaint via email to spicejet customer care but have not received a reply yet.

Regards
Rahul Malik