I want to focus on the story's central theme (trapped) and several sides of dialogue which refer to…

I want to focus on the story's central theme (trapped) and several sides of dialogue which refer to it. First this:

The greatest thing to come out of this country in its 10,000-year history... the rooster coop. They can see and smell the blood. They know they are next, yet they don't rebel. They don't try and get out of the coop.

This is where Balram starts: trapped in the coop. But he is determined to break free. First, he becomes a servant to Akosh, lifting him up out of poverty via steady employment.

Men born in the light, like my master, have the choice to be good. Men born in the coop, like me, we don't have that choice.

Right here, we learn that the seeds of where Balram will end up - murdering his master - exist early on in his Protagonist's journey.

I was trapped in the rooster coop, and don't believe for a second there's a million rupee game show you can win to get out of it.

A not so oblique reference to another Indian movie: Slumdog Millionaire. Balram cannot wait for good fortune to fall into his lap. No, he has to act to make it happen. This is the final side of dialogue in the script:

I switched sides. I made it, I've broken out of the coop.

By killing Akosh and becoming his own master, Balram has broken free of his "coop." However, it's fair to say he's in a new trap, where he is the master and his servants may very well be looking for opportunities to break free from their own traps... and with Balram standing in their way, who knows what fate awaits their master.