 Between 1947 and about 1950, the territories of the princely states were politically integrated into the Indian Union under Nehru and Sardar Patel.Most were merged into existing provinces; others were organised into new provinces, such as Rajputana, Himachal Pradesh, Madhya Bharat, and Vindhya Pradesh, made up of multiple princely states; a few, including Mysore, Hyderabad, Bhopal, and Bilaspur, became separate provinces.The Government of India Act 1935 remained the constitutional law of India pending adoption of a new Constitution.