| Siddhicharan Highway सिद्धिचरण राजमार्ग | |
| Country: | NPL |
| Provinces: | Madhesh Province, Koshi Province |
| Districts: | Siraha District, Udayapur District, Okhaldhunga District, Solukhumbu District |
| Type: | NH |
| Route: | 20 |
| Alternate Name: | National Highway 20 |
| Map Custom: | yes |
| Map Notes: | NH20 in red |
| Length Km: | 193 |
| Direction A: | South |
| Terminus A: | Madar |
| Junction: | Choharwa, Mirchaiya, Katari, Okhaldhunga |
| Direction B: | North |
| Next Type: | NH |
| Next Route: | 21 |
| Previous Type: | NH |
| Previous Route: | 19 |
Siddhicharan Highway (NH20) (Nepali: [[:ne:सिद्धिचरण राजमार्ग|सिद्धिचरण राजमार्ग]]) is a National Highway of Nepal located between Madhesh Province and Koshi Province. The total length of the highway is 193km (120miles) which passes through Siraha District of Madhesh Province and Udayapur District, Okhaldhunga District, Solukhumbu District of Koshi Province.[1] [2] It starts in Terai region at Madar (Indo-Nepal border) and crosses NH01 (Mahendra Highway) in Mirchaiya Municipality and runs towards north where it passes through Sivalik Hills and enters in Inner Terai valley in Katari Municipality, at there it crosses NH09 (Madan Bhandari Inner Terai Highway) then it moves further north climbing Mahabharat Range or Lesser Himalayas where it crosses NH03 (Mid-Hills Highway and enters hilly town Okhaldhunga of Siddhicharan Municipality. It crosses NH75 at Okhaldhunga and runs further North towards Salleri. The distance between Okhaldhunga to Salleri is 57.7km (35.9miles).[3]
| Highway No. | Highway Link | Destinations (between) | Distance (KM) | Elevation (M) |
|---|---|---|---|---|
| NH20 | NH20-001 | Madar-Siraha | 08.45 | 94 |
| NH20-002 | Siraha-Chauharwa | 18.21 | 155 | |
| NH01-018 | Chauharwa-Mirchaiya | 05.15 | 134 | |
| NH20-003 | Mirchaiya-Jyamire | 07.00 | 322 | |
| NH20-004 | Jyamire-Katari | 20.00 | 218 | |
| NH20-005 | Katari-Ghurmi | 48.47 | 442 | |
| NH03-017 | Ghurmi-Hilepani | 07.00 | 390 | |
| NH20-006 | Hilepani-Okhaldhunga | 35.20 | 1822 | |
| NH20-007 | Okhaldhunga-Mudhe Bisana | 20.71 | 3000 | |
| NH20-008 | 37.00 | 2493 |