Which of the following statements is/are correct about North-East India?

(i) This region now consists of seven States, also referred to as the ‘seven sisters’.
(ii) A small corridor of about 22 kilometres connects the region to the rest of the country.
(iii) Arunachal Pradesh and Mizoram became separate States only in 1988.
(iv) The region shares boundaries with China, Myanmar and Bangladesh and serves as India’s gateway to South East Asia.

(i), (ii) and (iv) only

In the North-East, regional aspirations reached a turning point in 1980s. This region now consists of seven States, also referred to as the ‘seven sisters’. The region has only 4 per cent of the country’s population but about twice as much share of its area. A small corridor of about 22 kilometers connects the region to the rest of the country. Otherwise the region shares boundaries with China, Myanmar and Bangladesh and serves as India’s gateway to South East Asia. The region has witnessed a lot of change since 1947. Tripura, Manipur and Khasi Hills of Meghalaya were erstwhile Princely States which merged with India after Independence. The entire region of North-East has undergone considerable political reorganisation. Nagaland State was created in 1960; Meghalaya, Manipur and Tripura in 1972 while Arunachal Pradesh and Mizoram became separate States only in 1986. The Partition of India in 1947 had reduced the North-East to a land locked region and affected its economy. Cut off from the rest of India, the region suffered neglect in developmental terms. Its politics too remained insulated. At the same time, most States in this region underwent major demographic changes due to influx of migrants from neighbouring States and countries.