Qatar Airways — my missing or stolen stuff from qatar airways

Address:

Ahmedabad, Gujarat, 380015

I was travelling from usa and my stuff is missing from qatar airways, what should i do when i ask about my missing stuff they didn't answer properly, and never allowed me to come in to office in ahmedabad india. The leady from qatar airways was saying liquer is not allowed, and also cellphones okay no problem but what about purse and cosmetics items those are ill leagle too?
She was not able to answer about that i don't know what should i do i have no idea in india if this happens in usa problem will be cured by the time.