Pallavi donated not because any incentives or anyone's request, but because of the kindness of her heart. She literally followed Neki kar aur dariya me daal principle. Her act reinforced Raghav's belief in good people. Let it be a sweet secret of Pallavi and a mystery to Raos
You'd think the Hyderabad ka don would've found out through his sources but that person is long gone I guess. 😔