His research career started at the Allahabad University under the supervision of Prof. B. N. Prasad on summability theory but soon he joined Prof. Amiya Charan Banerjee to work in differential equations. The results of his work (with Prof. Banerji, published in Proceeding of National Academy of Sciences, 1938) are included in the book of Erich Kamke. He became interested in the area of astrophysics after coming in contact with Meghnad Saha. In 1939 he obtained DPhil degree in mathematics for his thesis titled "On the Origin of the Solar System".