Gurmeet really carried the character of Yash, father of 4 children very well. Though look wise he was not looking papa of even one child but yes, Yash was health freak so use to maintain his body n kept himself look very young in spite of being father of 4 kids.
When it actually came to character as a father, the way Yash use to take care of his children , interact with them, Gurru was looking like a father.