His inclination towards the Marathi language led him to direct some great Marathi/Hindi movies such as Nal Damyanti[1] and Rupaye ki Kahani (1948).

His biggest success was the 1955 Marathi film titled Shirdi che Saibaba on the life of the 19th century holyman by the same name.

He married his distant cousin, Shobhna Samarth, an aspiring actress.

They had four children, including the famous film actresses Nutan and Tanuja.

After fourteen years of marriage, Kumarsen and Shobhana separated amicably but never divorced.