High school and university
Mohan showed special interest in English, mathematics, and physics during his high school days. His interest in English and mathematics developed because his mother had taught them to him from an early age, while his interest in physics and mathematics was nurtured by two good teachers in high school.
After high school, he followed in his father's footsteps by studying engineering at Cambridge University, England. He went on to do an M.Sc. in electrical engineering at Massachusetts Institute of Technology and a Ph.D. in physics at McGill University (Canada) in 1973, to satisfy his early interest in those fields.