National Highway 420 (NH 420)
Written and checked byRamanathan Virli· Roads & Infrastructure
Saragdih to Bundu — 57.0 km
NH 420 is a secondary/branch national highway connecting Saragdih to Bundu, spanning 57.0 km through Jharkhand. It branches from NH 20.
57.0
Kilometres
1
State
6
Major Cities
NH 20
Parent Highway
NH 420 Route Map
NH-320B near Saragdih(Subarnarekha), Muri, Silli, Bantahajam, Rahe, NH-43 near Bundu
States & Union Territories
NH 420 passes through the following 1 state:
Major Cities & Towns Along NH 420
The highway passes through 6 major cities and towns:
NH 420 Start and End Point
Start Point (Origin)
Saragdih
End Point (Terminus)
Bundu
Highway Classification
Speed Limit on NH 420
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 420
- ⚠️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
Where does National Highway 420 start and end?
Which states does National Highway 420 pass through?
What are the major cities on National Highway 420?
What is the total length of National Highway 420?
Is National Highway 420 a primary or secondary national highway?
What is the speed limit on National Highway 420?
What is the route of National Highway 420? (Route Map)
Planning a Road Trip on NH 420?
Check out our road safety guides and highway speed limits.
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