Who is Kedarnath Tandon from A Suitable Boy: A Novel and what is their importance?

Kedarnath, a shoe merchant, is married to Veena Mahesh, sister to Pran and Maan. Kedarnath has all the problems of merchants in post-liberation India. His son, Bhaskar, is a mathematical savant. Kedarnath introduces Haresh to the shoemaker, Jagat Ram, and other friends. Kedarnath is a solid family man.