What was the 'Kamraj Plan?'

The correct answer is Option 2 - Senior congressman to resign from office to make way for younger party workers.

K. Kamaraj made efforts to spread education in Madras province; introduced a mid-day meal scheme for schoolchildren; in 1963 he proposed that all senior Congressmen should resign from office to make way for younger party workers this proposal is famous as the ‘Kamraj plan'.