The correct answer is NH 39.
NH 39 is a national highway in India that connects Imphal, the capital of Manipur, with Dimapur, the capital of Nagaland. It is a two-lane highway that is 380 kilometers long. The highway passes through the states of Manipur, Nagaland, and Assam.
NH 39 is an important highway that connects the northeastern states of India. It is a major route for trade and commerce between the northeast and the rest of India. The highway is also a major tourist destination.
The other options are incorrect.
NH 37 is a national highway in India that connects Silchar, the headquarters of Cachar district in Assam, with Silliguri, the headquarters of Darjeeling district in West Bengal. It is a two-lane highway that is 350 kilometers long. The highway passes through the states of Assam and West Bengal.
NH 53 is a national highway in India that connects Guwahati, the capital of Assam, with Silchar, the headquarters of Cachar district in Assam. It is a two-lane highway that is 300 kilometers long. The highway passes through the states of Assam and Meghalaya.
NH 61 is a national highway in India that connects Agartala, the capital of Tripura, with Silchar, the headquarters of Cachar district in Assam. It is a two-lane highway that is 250 kilometers long. The highway passes through the states of Tripura and Assam.