It was mostly about how much smarter he looks now. Birthday wishes from the entire family and his mom quoted that provocation wala famous Sid quote that he had said in one of the episodes earlier about being a version of him he wants and not a version that others want.
Oh she also mentioned that they all enjoy and get a good night's sleep when they see Sid having fun - 'masti karta hai toh acha lagta hai'.. I was hoping she mentioned Shehnaaz somewhere there, it would have been sweet.