National Highway 4 (India)
|Length||230 km (140 mi)|
|States||Andaman & Nicobar Island|
National Highway 4 or NH 4, It is of 230.7 km of length. This road running from the capital city of Port Blair to Diglipur connecting all major towns of Ferrargunj, Baratang, Kadamtala, Rangat, Billy Ground, Nimbudera, Mayabunder and Diglipur. This highway is known as Andaman Trunk Road (The Great Andaman Trunk Road)
ATR becomes lifeline for the people of Andaman group of islands, especially for those residing in North & Middle Andaman district. Because prior 1970’s to early 1990’s transportation of men and goods used to take several days by sea route now can be completed in a matter of 10–12 hours. NH-4 hence facilities easy movement of essential commodities, health care facilities, etc. round the year.
ATR passes through the buffer zone of the Jarwa Reserve between Jirkatang to Middle Strait where is laws have been placed to minimize traveller contact with the native tribe of Jarawa. Only vehicle convoys with armed escorts are allowed.
Earlier this stretch of Highway was numbered as NH-223. 
A stretch of national highway from Mumbai to Pune to Hubli to Bangalore to Chennai was earlier called NH 4 before renumbering of national highways in year 2010. The former NH 4 is now renumbered as NH 48.
- List of National Highways in India (by Highway Number)
- List of National Highways in India
- National Highways Development Project
-  Details of National Highways in India-Source-National Highways Authority of India (NHAI)
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