- Merger – signed – 21st September 1949
- Became a part of India – 15th October 1949
- Part “C” State – The President/ through a Chief Commissioner
- 1st November 1956 – Union Territory
- 23rd July 1963 – UT with Territorial Legislative Assembly (TLA)
- TLA seats – 30 members + 2 nominated members
- 21st January 1972 – converted into a full-fledged state
- LA seats – 60 members
- March 20, 1972 – 1st elected government sworn-in