Remember the fashion show in Sheesh Mahal, where Arnav had introduced his sister Anjali to the media...there he introduced her sayin..."my sister, Anjali Jha"
And then the scene...where Khushi found Shyam's visiting card, to call him in order to get a job...in that visiting card his full name was written as "Shyam Manohar Jha"
So..I guess matching of surnames isn't a mere co-incident and two plus two always makes four😉