Spice Jet Airlines — money stolen from checked in baggage

Address:

A 467-C KH NO.849 GROUND FLOOR DURGA MARG MANDAWALI FAZALPUR JD MARKET DELHI 110092, 110092

I was traveling from hongkong to delhi from sg032 flight. When i reached home i realize that my money is missing from checked-in baggage. I have travel insurance also. My seat number was 17e. The amount was inr 5500.
What to do now. Please suggest. I am attaching my boarding pass along with this complaint. I was not expecting it from such a reputed airline. Although it's not a huge amount it really pains. Please resolve my issue asap. Please let me know if i have to complain about it anywhere. I am regular flier but facing this issue the first time.