Bangalore Metro Rail Corporation — items banned

Hi, is there any portal that we can see the banned items? Because we had travelled in metro wit bulbs before and all of sudden now they are not allowing us, not there is any bagagge counter to collect the item! The security sent me back down to parking telling it will be kept there but at the parking they said ask on top they only ve baggage counter.
This is a very ridiculous way of treatment of a 74yrs old man!