This picture is clicked inside the hall.
 In the center we can see the group of people wearing t-shirts.
 pushing the trolleys which are containing bags and some objects.
 we can see the group of people seems to be walking on the ground. 
 In the background we can see the wall, pillars, roof, ceiling lights, text and numbers.
the depictions of some objects on the board. 
 In the background we can see a vehicle, posters and some other objects. 
 In the bottom right corner we can see the numbers on the image.
 we can see the text on the trolleys.