Seriously, that song, those lines are perfect for the situation and Vidya's troubles in general..
..and everyone is intimidated by Sindura so they don't stand up for Vidya..sort of like chachi..in the same way that chachi knows Vidya is right because she knows Sindura's true colors..everyone (even Sagar subconsciously) knows it in their gut that Vidya is right..but they know if they say one word, they'll be in danger after Vidya leaves..Vidya toh jayegi hi jayegi, par mein kyun apna kismat kharap karoon? Such cowards, i swear!..She did so much for Mahua and in return she can't even say Di, let Vidya speak?! and Ma ji can't stand her son in pain..if it looks like her bahu did this, feigned pregnancy, she must be bad..oh no, don't realize that she was protecting him..well the apple doesn't fall far from the tree, right? He had to get his buddhu nature from somewhere!