What is Katha's age and Vihaan's age in show

I m curious abt Katha's and vihaan's age in show .katha has jst finished her architecture course so her's was an early marriage and what abt vihaan he never dated and looks to be around late 20's.

Both r in their 30s in the show as well I think.. Coz they have to show the story of two mature individuals who have seen some life and have been content with their life so far... How their lives intangled with each other due to a crises is the main plot so yaa..

Katha & her husband were college friends before Aditya proposed her & they got married.

Aaditya, Viaan, Ehsan were childhood friends as per their mom's.

Can remember Katha telling her friend Rewa she was 25 years young when pregnant with Aarav. Now Aarav is 8 years.

So all are in 33-34 years age group.