Spice Jet Airlines — my luggage was opened and things damaged

My pnr no is t8kj5p, traveling from kolkata to bangalore. I checked in my luggage without any problem and on time, i was still waiting for my flight which was in one hour. After landing on my way home, i show that my luggage was open and plastic tag of the airline was not there too. Frustrated i checked my bag, since there were mostly clothes it was okay but then i found that my vintage camera which is very high valuable had been scratched and had been tried to open. The bottom of the camera is missing some screws and hanging loose.

How can the staff be so careless and unprofessional, if it was a problem due to security reasons they should call me back to the counter and ask me to open it myself. None of the airlines i have traveled in have ever done this, once indigo staff called me back to remove my power bank, they didn’t open my bag without my presence. Also i have no idea why they wanted to open the camera, am assuming it was theft but not finding use of camera left it damaged. Because the airlines have no right to open our luggage without our presence. Iam never traveling in spicejet again.