Different steps of unification of Rajasthan are:

1. Matsya Sangh: In first step of unification of Rajasthan Matsya Sangh was formed by the accession of Alwar, Bharatpur, Dholpur, Karauli and region of Neemrana which is geographically same. It was named Matsya Sangh. It was the name of this region in Mahabharata period. On 18 March 1948, the Central Minister N.V. Gadgil did inauguration of this Sangh. Ruler of Dholpur was made its Raj Pramukh, Shobharam was made its Prime minister and Alwar was made its capital. 

2. East Rajasthan: In this second step, nine states, i.e., Banswara, Doongarpur, Pratapgarh, Kota, Bundi, Jhalawar, Kishangarh, Shahpura and Tonk were merged and East Rajasthan was organized. It was inaugurated by N.V. Gadgil on 25 March 1948. Ruler of Kota was made its Raj Pramukh, Gokul Lai Asawa was made the Prime Minister, Kota was made its capital. 

3. United Rajasthan: Maharana of Mewar was ready to merge before the organization of East Rajasthan. On 11 April 1948 Mewar signed on the document of merger. In this way after merging Mewar into East Rajasthan, United Rajasthan was formed. It was inaugurated by Pandit Jawaharlal Nehru. On 18th April 1948, Maharana of Mewar Bhoopal Singh was made Raj Pramukh and Manikya Lai Verma Prime Minister. Udaipur was made its capital. 

4. Greater Rajasthan: After the merger of Mewar, merger of other states became easy. In fourth step, merger of Jaipur, Jodhpur, Bikaner and Jaisalmer gave birth to the formation of Greater Rajasthan. On 30 March 1949 it was inaugurated by Sardar Patel. Maharana Bhoopal Singh of Mewar was made its Maharaj Pramukh and Heera Lai Shastri was made the Prime Minister. Jaipur was declared its capital. Being the most important step of unification, this day is celebrated as Rajasthan Diwas. 

5. United Greater Rajasthan: During this process, Matsya Sangh was working independently, but being the part of border region of Uttar Pradesh decision regarding it had to done accordingly. Hence, on 15 May 1948, Matsya Sangh was merged in Greater Rajasthan and United Greater Rajasthan was formed. Shobha Ram Shastri was included in Council of Ministers. 6. Rajasthan Union: In merger steps, question of merger of Sirohi was left. On 26 January 1950, two Tehsils of Sirohi i.e. Abu and Dilwara were merged in Bombay and rest of the Sirohi was merged in Rajasthan. People of Sirohi wanted the merger of two Tehsils also in Rajasthan. Hence, this issue was handed over to the State Reorganization Commission. 

7. Formation of Present Rajasthan: In British period, Ajmer-Marwada was a union territory hence it remained an independent state till 1956 as grade ‘C’ state. At last on the recommandation of the State Reorganization Commission, this region was merged in Rajasthan. Abu and Dilwara were also merged in Rajasthan on the recommendation of the Commission. Border attached with Madhya Pradesh was also reorganized. Suneltappa of Madhya Pradesh and Sironj of Rajasthan was merged in Madhya Pradesh. At last on 1^st November 1956 unification of Rajasthan was completed and the present form of Rajasthan came into being. Post of Raj Pramukh was abolished. Gurumukh Nihal Singh took oath in the form of first Governor of the state.