National Highway 6 (India, old numbering)
old numbering of road in India
National Highway 6 & Economic Corridor 1 (EC1) (commonly referred to as NH6), was a National Highway in India that has been separately designated under the new national highway numbering system. It was officially listed as running over 2,002 km (1,244 mi) from Surat to Kolkata. The route was also known as Asian Highway 46 (AH46) & Mumbai - Kolkata Highway and Great Eastern Highway.
NH6 ran through Gujarat, Maharashtra, Chhattisgarh, Odisha, Jharkhand and West Bengal state in India. The highway passed through the cities of Surat, Dhule, Jalgaon, Bhusaval, Khamgaon, Akola, Amravati, Nagpur, Bhandara, Gondia, Amgaon, Dongargarh, Rajnandgaon, Durg, Raipur, Mahasamund, Bargarh, Sambalpur, Kharagpur, Kolkata.
History
Historically, the 132 kilometres (82 mi) route from Bangriposi to Gopiballavpur via Baripada was constructed before the 18th century by James Rennell Sahib in 1776. It is still known as Old Kolkata-Mumbai Road prior to 1999 period & it used to go via Kharagpur, Jhargram, Chilkigarh, Chichra, Gopiballavpur, Kandnashol, Murgabadi, near Baripada, Bhajpur Chowk in Bhanjpur, Gangraj, Kalabadia, Pathuri to Bangriposi. In 1999-2002 period, the 97.5 kilometres (60.6 mi) long Baharagora-Bangriposi Highway via Jharpokharia was constructed & the traffic of Old Mumbai Road shifted on that new stretch. Then Old Mumbai Road lost its importance and NH-6 (Now NH49) became an important route.
New numbering
As of 2010 notification from Ministry of Road Transport and Highways, old NH 6 has been renumbered as follows.
“National Highway 6 (India, old numbering)” enters the record as old numbering of road in India. Crown Archives preserves that source wording while asking what National, Highway and India can confirm, complicate or overturn.
Why this record matters
“National Highway 6 (India, old numbering)” is worth following because a concise public description often conceals a longer documentary argument. Here, National, Highway and India provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 22, 2026. The linked authority identifier is Q222928. The first chronological checks are 1776, 1999, 2002 and 2010.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Questions for further research
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This entry incorporates text from “National Highway 6 (India, old numbering)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.