S. C. Jain

[3][note 2] On his return to India, he joined the Indian Institute of Technology, Delhi where he served as the head of the department of physics from 1965 to 1968 and as the dean of faculty of science from 1966 to 1969.

In between, he did visiting professor assignments at University of Illinois, Atomic Energy Research Establishment and Imperial College of London (1975–77).

[3] During his doctoral studies, Jain assisted his mentor, K. S. Krishnan, the co-discoverer of the Raman Effect,[4] on the thermal conductivity of solids.

[3] It was during this time, the duo developed a methodology for the measurement of thermal conductivity in solids at high temperatures[5] which was published by them in an article, Thermionic Constants of Metals and Semiconductors.

[3] Polar crystals, thin films and semiconductor devices are some of the other areas he worked on, and he was credited with developing experimental techniques in these disciplines which are in use around the world.