Assertion: Language has not been the only basis of the organization of states in India.
Reason: Calls for separate and smaller states are being made in Vidarbha (Maharashtra), Harit Pradesh (western Uttar Pradesh), and the northern region of West Bengal.

Both the Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

The ongoing story of reorganization continues as several regions in the country, including Vidarbha (Maharashtra), Harit Pradesh (western Uttar Pradesh), and the northern region of West Bengal, have witnessed movements demanding separate and smaller states, driven by claims of distinct regional culture or grievances regarding regional development imbalance, as exemplified by the creation of Jharkhand, Chhattisgarh, and Uttaranchal in 2000.