South Bengal State Transport Corporation [SBSTC] — stolen my tab from my bag

Address:

Kolkata, West Bengal, 700108

When i was travelling from karunamoyee to asansol on 9th dec 2:00 pm bus there was no place in my side i kept my bag abive seat no 1&2.. When i got down in saktigarh some one has stolen my daughters tab. I would like to know the details of customer details with contact no. Behind the conductor and also the conductor details. No security is there... Everywhere thief's r present. Shame on our public. Please help.