Detailed Solution:
The correct answer is “All the three ”.
1) The term "Union of States" emphasizes the indestructible nature of the Indian Union, where states cannot unilaterally secede.
2) The Dhar Commission, established in June , 1948, recommended that states be reorganized on the basis of administrative convenience rather than linguistic or cultural lines.
3) The JVP Committee (Jawaharlal Nehru, Vallabhbhai Patel, and Pattabhi Sitaramayya) formed in December, 1948 initially rejected the linguistic basis for the reorganization of states.