A typical General Compartment Queue.
For most trains, especially the ones going to the Cow Belt, East or South, there's a queue that forms many hours before the trains actually leave Mumbai. There are RPF cops, ropes to control the line and when the train arrives and the doors of the general compartment are opened, lathis (batons) fly, tempers rise and compartments can get as crowded as the Virar Fast during the peak hour. Once you have found a seat or a luggage rack where you can perch, you stay there. You can also imagine what you need to do if you need to take a pee!
This was for a train that was going to Vishakapatnam on the East Coast on the No. 3 Platform of the Lokmanya Tilak Terminus.
Luckily if there is one thing Mumbaikars can create with unparalleled understanding, it's a queue.