Historical form of Rajasthan. The word 'Rajasthan' was first used by the famous historian Colonel James Tod in his book 'Annals and Antiquities of Rajasthan' to collectively understand the princely states or princely states. After independence in 1947, when this region was reorganized as a result of the merger of the princely states of Rajputana, then the name Rajasthan used by Colonel Tod was accepted for this newly formed state.This process of formation of the present Rajasthan state was completed in five stages. On March 17, 1948, the first Matsya Union was formed, in which the princely states of Alwar, Bharatpur, Dholpur and Karauli were included. Along with this, on March 25, 1948, another larger union was formed, in which Kota, Tonk, Bundi, Jhalawar, Pratapgarh, Dungarpur, Banswara, Kishangarh, Shahpura, these nine princely states and two chiefships Lava and Kushalgarh were included.Subsequently, on April 18, 1948, the princely state of Udaipur and shortly thereafter the merger of Jaipur, Jodhpur, Bikaner and Jaisalmer resulted in the formation of the Rajasthan Union, which was inaugurated by Sardar Patel on March 30, 1949. After that, in the fifth phase, Matsya Union also merged with greater Rajasthan. In 1956, according to the recommendations of the State Reorganization Commission, Abu and Ajmer Merwada were also included in Rajasthan and the present Rajasthan state was formed.Although Rajasthan was used by Colonel Tod in the sense of state or state, however, we find the use of the word Rajasthan in a different sense even before Colonel Tod. In fact, in the medieval Rajasthani literature and history books, there has been a lot of use of Rajasthan along with its corrupted forms 'Rajasthan', 'Rajathan', 'Rajthan' etc.Rajasthan is the largest state of India by area. The capital of Rajasthan is Jaipur. The state shares an international border of 1070 km with Pakistan. Which is known as Red Clip Line. Apart from this, Rajasthan is also connected to other five states of the country. It has Gujarat in the south-west, Madhya Pradesh in the south-east, Punjab in the north, Uttar Pradesh and Haryana in the north-east. The area of the state is 3,42,239 sq km. According to 2011 census, the literacy rate of Rajasthan is 70%.