Indigo Airlines — item removed from my checked bag

We took a flight # 6e-1206 from columbo to pune via bengaluru. Pnr #: hc98ws. Return date: jan 26, 2019.
Upon our arrival home, we noticed that one of the bag had a blue
Sticker "security checked", we did not think much of it, until we emptied the bag and noticed that one of the crafts we had purchased from sri lanka goverment gift shop was missing. We had purchased 3 of the same item.

I do not have a problem having a "security check" done, but i am appauled that one of the baggage handler is not trustworthy and had purposely removed one of my items. I was understanding that this type of behavior was stopped and was illegal to withdraw any item from the bag.
Kindly look into this matter, as we are leaving today to go back home to usa.

I would appreciate if you can communicate with me at the following email address: gujumum59@gmail.com.

Attach is the pic of the item that is missing.

Thank you
Rekha parikh