Geography of India
India is divided into 29 states (further subdivided into districts) and 7 union territories including The National capital territory (I.e., Delhi).
India's borders run a total length of .
History of the Republic of India
In the Northeast India, the state of Assam was divided into several states beginning in 1970 within the borders of what was then Assam. In 1963, the Naga Hills district became the 16th state of India under the name of Nagaland. Part of Tuensang was added to Nagaland. In 1970, in response to the demands of the Khasi, Jaintia and Garo people of the Meghalaya Plateau, the districts embracing the Khasi Hills, Jaintia Hills, and Garo Hills were formed into an autonomous state within Assam; in 1972 this became a separate state under the name of Meghalaya. In 1972, Arunachal Pradesh (the North East Frontier Agency) and Mizoram (from the Mizo Hills in the south) were separated from Assam as union territories; both became states in 1986.