It’s a bribe, the cops will point out flaws in your verification and give you a runaround, happened with me here in Gurgaon as well. Pay it and move on or if you’re nitty gritty, ask them if you can call the numbers provided on the station of their higher ups what the junior officer is talking about.
I fucking laughed when the cop told me, I have to get my NOC signed from Delhi, then only he can sign this in Gurgaon to verify whether I am a legal citizen, like yeah dumbass, the whole point of me coming to you is so that you can verify me identity. Showed him 500, he told me to put it under a photo his kids like he’s a saint.