The Dravidian movement led to the formation of Dravidar Kazhagam (DK) under the leadership of which social reformer?
E.V. Ramasami 'Periyar' correct for Indian politics post-independence nation building reorganization as per NCERT Politics in India.
Ref: NCERT Political Science Class XII Politics in India Since Independence Chapter 1 Nation Building explains princely states 565 integration reorganization.