Spice Jet Airlines — Braking of zip of check in baggage

I traveled today from Mumbai to Darbhanga under PNR GI245E by SG113. After reaching home found that the runner of zip of one of my check in baggage was forcefully broke at the lock. One small wallet inside was also found opened and items were searched for valuables. Zip of bag was intact while checking in at Mumbai. Probably this happened while carrying luggage form dispersal to terminal due to distance involved. I strongly demand an action against the culprits.