Air India — Gold stolen

I am writing this complaint against Air India. Air india staff has stolen my gold jewellery from my luggage. I traveller through air india on 16th aug 2020 from delhi to coimbatore with flight AI512.

They opened my bag and took my pendant set with mangalsutra and a ring. When i reached home and opened my bag i saw these things missing from my bag. I didn't go anywhere in between and nobody came to my house after reaching so i am sure things have been stoled during flight by Air India staff.