🛣️Secondary Highway

National Highway 712B (NH 712B)

Basirhat to Kalyani — 102.5 km

NH 712B is a secondary/branch national highway connecting Basirhat to Kalyani, spanning 102.5 km through West Bengal. It branches from NH 12.

102.5

Kilometres

State

Major Cities

NH 12

Parent Highway

NH 712B Route Map

NH312 near Basirhat, Haroa, Rajarhat, Nimta, Barrackpore, Kanchrapara, Kalyani

States & Union Territories

NH 712B passes through the following 1 state:

West Bengal

Major Cities & Towns Along NH 712B

The highway passes through 7 major cities and towns:

●Basirhat→●Haroa→●Rajarhat→●Nimta→●Barrackpore→●Kanchrapara→●Kalyani

View on Google Maps

NH 712B Start and End Point

Start Point (Origin)

Basirhat

Junction point from route description

End Point (Terminus)

Kalyani

Junction point from route description

Highway Classification

Highway NumberNH 712B

TypeSecondary/Branch Highway

Parent HighwayNH 12

Total Length102.5 km

Numbering SystemPost-2010 (New)

Managed ByNHAI / MoRTH

Speed Limit on NH 712B

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 712B

⚠️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 712B pass through?

National Highway 712B passes through West Bengal.

What are the major cities on National Highway 712B?

The major cities and towns along National Highway 712B include Basirhat, Haroa, Rajarhat, Nimta, Barrackpore, Kanchrapara, Kalyani.

What is the total length of National Highway 712B?

The total length of National Highway 712B is 102.5 km.

Is National Highway 712B a primary or secondary national highway?

National Highway 712B is a secondary/branch national highway that branches from NH 12.

What is the speed limit on National Highway 712B?

The speed limit on National Highway 712B 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 712B? (Route Map)

National Highway 712B follows this route: NH312 near Basirhat, Haroa, Rajarhat, Nimta, Barrackpore, Kanchrapara, Kalyani.

Planning a Road Trip on NH 712B?

Check out our road safety guides and highway speed limits.

Road Safety Rules Highway Speed Limits Road Trip Checklist