Like the Gun scene for example in the Jail and Paro tears falling on Rudra later that is Sanaya best performance in the show according to me.
My second favorite is the Temple scene of Paro when she wish her husband to be named after her favorite God Shiva - I can't count how many times I rewatch that scene.
Then the scenes after Paro death when she was putting Dhruv in the Cupboard.
The Jail sequences - All those scenes she nailed effortlessly especially the one when she was holding her mangalsutra and crying.