<P> After the independence of India in 1947 , the area remained a part of the province of Assam . Nationalist activities arose amongst a section of the Nagas . Phizo - led Naga National Council and demanded a political union of their ancestral and native groups . The movement led to a series of violent incidents , that damaged government and civil infrastructure , attacked government officials and civilians . The union government sent the Indian Army in 1955 , to restore order . In 1957 , an agreement was reached between Naga leaders and the Indian government , creating a single separate region of the Naga Hills . The Tuensang frontier was united with this single political region , Naga Hills Tuensang Area ( NHTA ) , and it became a Union territory directly administered by the Central government with a large degree of autonomy . This was not satisfactory to the tribes , however , and agitation with violence increased across the state -- including attacks on army and government institutions , banks , as well as non-payment of taxes . In July 1960 , following discussion between Prime Minister Nehru and the leaders of the Naga People Convention ( NPC ) , a 16 - point agreement was arrived at whereby the Government of India recognised the formation of Nagaland as a full - fledged state within the Union of India . </P>
<P> After the independence of India in 1947 , the area remained a part of the province of Assam . Nationalist activities arose amongst a section of the Nagas . Phizo - led Naga National Council and demanded a political union of their ancestral and native groups . The movement led to a series of violent incidents , that damaged government and civil infrastructure , attacked government officials and civilians . The union government sent the Indian Army in 1955 , to restore order . In 1957 , an agreement was reached between Naga leaders and the Indian government , creating a single separate region of the Naga Hills . The Tuensang frontier was united with this single political region , Naga Hills Tuensang Area ( NHTA ) , and it became a Union territory directly administered by the Central government with a large degree of autonomy . This was not satisfactory to the tribes , however , and agitation with violence increased across the state -- including attacks on army and government institutions , banks , as well as non-payment of taxes . In July 1960 , following discussion between Prime Minister Nehru and the leaders of the Naga People Convention ( NPC ) , a 16 - point agreement was arrived at whereby the Government of India recognised the formation of Nagaland as a full - fledged state within the Union of India . </P>
nagaland was formed in 1963 . which state was it a part of earlier
nagaland was formed in 1963 . which state was it a part of earlier
Assam
Assam