Vistara — Theft and harassment

Address:

143001

Regarding my flight no uk736 from amritsar to mumbai dated 4th june 2017 with vistara airlines.
It is so disappointing that during my travel with vistara airlines, my valuables were stolen from my luggage. It includes my 2 watches. Guess and casio edifice costing 26 thousands, which are stolen from the luggage and empty boxes of watch are left.
When my luggage came on belt number 1 at mumbai airport, i noticed luggage seals were broken so while checking i found my two watches are stolen from luggage and only watch empty boxes were there.
I have given complaint at the same moment to vistara staff. It was also confirmed by vistara staff that at amritsar ur luggage weight was 15 kg and while checking at mumbai it was 14.6 kg.
Even after 2 weeks of investigation all i got response from vistara is "airlines is not responsible for the loss and it is as per our tc".
My ques to vistara airline is. What is your responsibility then to steal valuables from luggage? If our luggage is not safe in airports then where it is? Vistara says do not put valuables in luggage, what if we put that u steal that?
Airports where cctv are at every corner, you are not able to find the con who is doing such act?

This is no where written in tc that airlines will open the luggage and steal things.
Please lodge complaint of theft and harassment against vistara airlines and i need compensation for the same.