Ansh is shown many many times either because he represents Aarti's helplessness or because he is an extroverted child. However Payal and Palak are almost mute spectators in the whole wedding. Its surprising given that they are the only reason the entire Scindhia family wanted the PV (incl Yash) and were never clamoring for a mother in the first place either. The couple of times Aarti has interacted with them, they have made faces and run away. Thats it.
Why didnt Yash want to bring his kids with him in the car along with Aarti? Also, when they get back home, why isnt he curious where they are and if they have slept etc? I know this is early days for Aarti at the Scindhia household but so far, the screenspace has definitely been skewed in Ansh's favor over the other two (younger?) kids.