🛣️Secondary Highway

National Highway 627B (NH 627B)

Bai Thanglangso to Amoni/Ahmoni — 85.0 km

NH 627B is a secondary/branch national highway connecting Bai Thanglangso to Amoni/Ahmoni, spanning 85.0 km through Assam, Meghalaya. It branches from NH 27.

85.0

Kilometres

States

Major Cities

NH 27

Parent Highway

NH 627B Route Map

NH27 near Bai Thanglangso, Kampur, Kathiatali, Qaziranghwa, Xiejun, Xinathong, Amoni/Ahmoni(Ahxomni)

States & Union Territories

NH 627B passes through the following 2 states:

AssamMeghalaya

Major Cities & Towns Along NH 627B

The highway passes through 7 major cities and towns:

●Bai Thanglangso→●Kampur→●Kathiatali→●Qaziranghwa→●Xiejun→●Xinathong→●Amoni/Ahmoni(Ahxomni)

View on Google Maps

NH 627B Start and End Point

Start Point (Origin)

Bai Thanglangso

Junction point from route description

End Point (Terminus)

Amoni/Ahmoni

Junction point from route description

Highway Classification

Highway NumberNH 627B

TypeSecondary/Branch Highway

Parent HighwayNH 27

Total Length85.0 km

Numbering SystemPost-2010 (New)

Managed ByNHAI / MoRTH

Speed Limit on NH 627B

Cars, Jeeps & Light Motor Vehicles100 km/h

Buses & Goods Carriers (medium)80 km/h

Heavy Motor Vehicles (trucks, lorries)60 km/h

Motorcycles & Two-Wheelers80 km/h

Speed limits are prescribed under the Motor Vehicles Act and Central Motor Vehicles Rules for national highways. State governments may impose lower limits on specific stretches.

Safety Tips for Driving on NH 627B

⚠️Always follow the speed limit — 100 km/h for cars and 80 km/h for heavy vehicles on national highways.
⚠️Wear seatbelts and ensure all passengers are buckled up.
⚠️Do not overtake on curves, bridges, or narrow sections.
⚠️Keep a safe following distance, especially during monsoon season.
⚠️Use headlights even during daytime on highways.
⚠️Take breaks every 2 hours during long drives to avoid fatigue.
⚠️In case of an emergency, call 112 (Unified Emergency Number) or 1033 (National Highway Helpline).

Frequently Asked Questions

Which states does National Highway 627B pass through?

National Highway 627B passes through Assam, Meghalaya.

What are the major cities on National Highway 627B?

The major cities and towns along National Highway 627B include Bai Thanglangso, Kampur, Kathiatali, Qaziranghwa, Xiejun, Xinathong, Amoni/Ahmoni(Ahxomni).

What is the total length of National Highway 627B?

The total length of National Highway 627B is 85.0 km.

Is National Highway 627B a primary or secondary national highway?

National Highway 627B is a secondary/branch national highway that branches from NH 27.

What is the speed limit on National Highway 627B?

The speed limit on National Highway 627B is 100 km/h for cars and light motor vehicles, 80 km/h for buses and medium goods vehicles, and 60 km/h for heavy motor vehicles (trucks and lorries). These limits are set under the Central Motor Vehicles Rules for national highways. State governments may impose lower limits on specific sections.

What is the route of National Highway 627B? (Route Map)

National Highway 627B follows this route: NH27 near Bai Thanglangso, Kampur, Kathiatali, Qaziranghwa, Xiejun, Xinathong, Amoni/Ahmoni(Ahxomni).

Planning a Road Trip on NH 627B?

Check out our road safety guides and highway speed limits.

Road Safety Rules Highway Speed Limits Road Trip Checklist