National Highways in Bihar
Written and checked byRamanathan Virli· Roads & Infrastructure
59 national highways pass through Bihar, 6 of them primary routes. Each entry below links to that highway's full route, start and end points, and the states it crosses.
59
Highways
6
Primary NHs
14,364
Total route km
NH 19Primary
Agra → Dankuni
NH 20Primary
Bakhtiyarpur → Panikoili
NH 22Primary
Sonbarsa → Lohardaga
NH 27Primary
Porbandar → Silchar
NH 31Primary
Unnao → Gazole
NH 33Primary
Arwal → Farakka
NH 119
Dehri → border Bihar/UP
NH 119D
Morhar → Ekangasarai. Daniwayan
NH 120
Bihar Sharif → Gaya
NH 122
Muzaffarpur → Barauni
NH 122B
Hazipur ,Mahanar → Bachwara
NH 124C
Tarighat → Buxar
NH 131
Bihpur → Birpur
NH 131A
Malda → Purnia
NH 131B
NH 131G
Dighwara → Ramnagar
NH 133E
Bhagalpur → Dumka
NH 139
Rajhara → Patna
NH 219
Mohania → Chandauli
NH 219A
Bhabhua → Adhaura
NH 224
Chausa ,Kochas → Kargahar ,its junction with NH19
NH 227
Chakia → Narahia
NH 227A
Chhawani → Chakia
NH 227F
Chakia ,Pakridayal → Phulwaria Ghat ,Bairgania
NH 227J
Saharghat ,Uchhait → Rahika
NH 227L
NH 231
Maheshkund → Kora
NH 233
Sultanganj → Deoghar
NH 319
Mohania → Ara
NH 319A
Mohania ,Ramgarh → Buxar
NH 319B
Mughalsarai → Kolkata
NH 322
Hazipur → Mushrigharari
NH 327
Bagdogra → Darbhanga
NH 327A
NH 231 → Bhimpur
NH 327B
Forbesganj → Kursela
NH 331
Chhapra → Muhumadpur
NH 333
Bariyarpur → NH114A in Devgarh
NH 333A
Barbigha → Hiranpur
NH 333B
Munger → Biraul
NH 333C
Chakai → Giridih
NH 333D
Jehanabad → Sikandara ,Lakhisarai
NH 333E
Barbigha → Chatro
NH 431
Phatuha → Barh
NH 433
Lakhisarai → Nawada
NH 527
Forbesganj → Jogbani
NH 527A
Pokhrauni Chowk → Jhanjharpur
NH 527B
Darbhanga → Jainagar
NH 527C
Majhauli → Charout
NH 527D
Piprakothi → Nepal border
NH 527E
NH-27 → Begusarai
NH 531
Chhapra → Gopalganj
NH 533
Kinjar → Chhatarpur
NH 533A
Kinjar → Bihta
NH 722
Muzaffarpur → Chhapra
NH 727
Kushinagar → Chhapwa
NH 727A
Gorakhpur → Jhulnipur
NH 733
Arwal → Chirand
NH 922
Patna → Buxar
NH 939
Garhwa → Shahgarh
Frequently asked questions
How many national highways pass through Bihar?
59 national highways run through Bihar, of which 6 are primary (single- or double-digit) national highways and the rest are branch or spur routes.
Which is the longest national highway in Bihar?
Among the highways passing through Bihar, NH 27 is the longest at 3507 km, running from Porbandar to Silchar. Note that this is the highway's full length across all states it passes through, not only the portion inside Bihar.
What is the speed limit on national highways in Bihar?
On national highways the default limit notified by the Ministry of Road Transport & Highways is 100 km/h for cars on four-lane and wider divided carriageways, 80 km/h on undivided highways, and 80 km/h for light goods vehicles. State authorities and NHAI can notify lower limits on specific stretches, and the signposted limit always overrides the default.