🛣️Secondary Highway

National Highway 108B (NH 108B)

Agartala to NH 208 — 55.0 km

NH 108B is a secondary/branch national highway connecting Agartala to NH 208, spanning 55.0 km through Tripura. It branches from NH 8.

55.0

Kilometres

State

Major Cities

NH 8

Parent Highway

NH 108B Route Map

NH8 near Agartala, NH 208 near Khowai

States & Union Territories

NH 108B passes through the following 1 state:

Tripura

Major Cities & Towns Along NH 108B

The highway passes through 2 major cities and towns:

●Agartala→●Khowai

View on Google Maps

NH 108B Start and End Point

Start Point (Origin)

Agartala

Junction point from route description

End Point (Terminus)

NH 208

Junction point from route description

Highway Classification

Highway NumberNH 108B

TypeSecondary/Branch Highway

Parent HighwayNH 8

Total Length55.0 km

Numbering SystemPost-2010 (New)

Managed ByNHAI / MoRTH

Speed Limit on NH 108B

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 108B

⚠️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 108B pass through?

National Highway 108B passes through Tripura.

What are the major cities on National Highway 108B?

The major cities and towns along National Highway 108B include Agartala, Khowai.

What is the total length of National Highway 108B?

The total length of National Highway 108B is 55.0 km.

Is National Highway 108B a primary or secondary national highway?

National Highway 108B is a secondary/branch national highway that branches from NH 8.

What is the speed limit on National Highway 108B?

The speed limit on National Highway 108B 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 108B? (Route Map)

National Highway 108B follows this route: NH8 near Agartala, NH 208 near Khowai.

Planning a Road Trip on NH 108B?

Check out our road safety guides and highway speed limits.

Road Safety Rules Highway Speed Limits Road Trip Checklist