Indigo Airlines — Luggage damage

Address:

Maharashtra

PNR no: SQRMUG, Date: 20 dec 2022, flight from Mumbai to Kathmandu, One Female Passenger: Rina Kumari Chetani.
Luggage Damage Complaints made to Indigo Airline on same date. But till date no proper response from airline. Passenger try to register complaint during but no one register complaints at Airport. Bag is damaged badly, Bag Lock is removed, Extra locks are missing, Bag Chain are tempered and broken.
Complaints made to Indigo Airline many times but no proper response from Indigo Airline Customer Care team. They are showing policy rules and regulations.
Indigo is providing 1000 voucher and I am not agree with this.
Bag cost 7000/8000, repair cost 4000/5000. I need bag replacement or full fare refund or cash compensation.
Kindly do the needful.
Bag damage pictures and boarding pass picture attached.