Rangiya–Murkongselek section (including Rangapara North-Dekargaon, Balipara-Bhalukpong & Harmuti-Naharlagun branch lines)
Harmuti Junction an important railway station on Rangiya–Murkongselek section
Overview
Status	Operational
Owner	Indian Railways
Locale	Assam
Termini	Rangiya Murkongselek
Service
Operator(s)	Northeast Frontier Railway
Technical
Line length	450 km (280 mi)
Number of tracks	1
Track gauge	1,676 mm (5 ft 6 in) Broad gauge
Electrification	Yes
Route map Legend km New Bongaigaon– Guwahati section 0 Rangiya New Bongaigaon– Guwahati section 5 Khandikar 15 Goreswar 28 Khoirabari 39 Tangla 49 Harisinga 60 Udalguri 73 Rowta Bagan 82 Majbat 0 Panchnoi (closed NG section) 89 5 Hugrajuli closed NG section 8 Sapoi Siding 9 Sapoi Hat 13 Dibru Darrang Siding 15 Dherai Siding 17 Monmohinipur Road 20 Dhekiajuli 21 Dhekiajuli Tea Estate 24 Sirajuli 32 Singri 99 Dhekiajuli Road 106 Belsiri 111 New Missamari 113 Misamari Gabharu River 118 Borjuli Road Thakurbari T.E No. 1 123 Rangapara North Junction 124 Rangapara 127 Borjuli Tea Estate (closed NG section) 127 Thakurbari 132 Sessa 138 Bindukuri 142 Dekargaon closed MG section 146 Dadhora Halt 150 Tezpur planned bridge on Brahmaputra River Dekargaon–Silghat Town line (under construction) 129 Borjuli 131 Nahorani Siding 132 Balipara Junction 139 Char Duar 145 Gamani Assam Arunachal Pradesh border 166 Bhalukpong planned connection Tenga Dirang Tawang 140 Jiabharali Kameng River 148 Dhalaibil 154 Nagsankar 161 Nizchatia 173 Vishwanath Chariali 183 Monabari 190 Niz Bargang 199 Bedeti 206 Helem 210 Tetonbari 215 Brahmajan 225 Gohpur 234 Dubia 243 Uttarkathani 249 Tatibahar 257 Tipling Dikrong River 266 Harmuti Junction Assam Arunachal Pradesh border 276 Gumto 285 Naharlagun 270 Tanijan 279 Kathal Pukhuri 286 Silanibari 296 North Lakhimpur planned connection 304 Lilabari 313 Siajuli 321 Boginadi 331 Subansiri Subansiri River 340 Gogamukh Assam Arunachal Pradesh border Bame Aalo Arunachal Pradesh Assam border 345 Na Nadi 352 Bordloni Kumotiya River 359 Jiadhal 365 Dhemaji 373 Moridhal 377 Sripani 384 Sisibargaon planned connection 388 Silapathar 386 New Sisibargaon 396 Tangani Bogibeel Bridge over Brahmaputra River Lumding–Dibrugarh section 398 Archipathar 403 Dimov 408 Dipa Simen River 412 Simenchapari 418 Dekapam 422 Jamjing 425 Telam Dikhari River 433 Laimekuri 442 Jonekarang 450 Murkongselek Assam Arunachal Pradesh border 463 Sille 469 Rani 480 Pasighat under construction ↑ planned ↓ Roing Tezu Parshuram Kund to Rupai (planned) Sources: Google Maps Indian Railway Time Table Presentation on Development of Rail Infrastructure in the Northeast Region

The Rangiya–Murkongselek section is a 450 km (280 mi) long railway line connecting Rangiya in Kamrup district with Murkongselek in Dhemaji district in the Indian state of Assam. The entire section is under the jurisdiction of Northeast Frontier Railway.

The Tezpur-Balipara Light Railway was built as a 20 mi (32 km) long, 762 mm (2 ft 6 in) narrow gauge railway line between Tezpur and Balipara in 1895 with the primary aim of transporting tea from upcountry estates to the river port of Tezpur for onward shipment down the Brahmaputra to Calcutta. A 2 miles (3.2 km) extension to this line was made from Rangapara, then a station on this line, to Borjuli Tea estate as well. However, this line was closed to traffic on 1908.^[1]

This line continued to operate until 1952 before it was taken over by the North Eastern Railway and was converted to metre gauge.^[2]

The Singri-Panchnoi River Tramway was a privately owned narrow gauge line that ran northwards from Singri Ghat on the Brahmaputra River to the environs of Hugrajuli. The line opened in 1919 to transport tea down to the Singri Ghat.^[3][4]

Tracks were laid at Rangiya as a part of the extension of Eastern Bengal Railway's main metre gauge line from Sarbhog to Amingaon in 1909.^[5] The Tangla extension was built from Rangiya to Tangla in 1912.^[6] The line was extended to Rangapara North station on the Tezpur-Balipara Light Railway by 1933.^[2]

Post-independence the metre-gauge line was extended from Rangapara North to Murkongselek. The Balipara-Bhalukpong branch line was built in 1989–90.^[7]

The conversion of this section to broad gauge started on 2007–08. The Rangiya-Rangapara North-Dekargaon section was converted and opened for traffic in 2013. The Tezpur railway station was abandoned however owing to its proximity to Brahmaputra river which caused frequent flooding and Dekargaon railway station became the terminus of the branch line. The Rangapara North-Harmuti & Harmuti-North Lakhimpur sections were converted in 2014 and the North Lakhimpur-Sripani section was converted and opened in 2015. The final stretch between Sripani and Murkongselek along with the Balipara-Bhalukpong branch line was converted and opened to traffic in May 2015 as well.^[8]

The Balipara-Bhalukpong branch line was built in 1989–90.^[7] The line was converted to broad gauge in May 2015.^[8]

The Harmuti-Naharlagun branch line was announced in 2008 and was opened in 2014 as a part of the Rangiya-Murkongselek gauge conversion project. This was declared a national project considering that it connected Itanagar, the capital of Arunachal Pradesh, with the Indian railway network.^[9]

The Bogibeel Bridge was sanctioned in 1997 and work started on it in 2002. It was intended to link the Rangiya-Murkongselek section on the north bank of the Brahmaputra with the Lumding-Dibrugarh section in the South bank. The work was completed on 2018 and the first train across the bridge was flagged off by Prime Minister Narendra Modi.^[10]

Three national projects of strategic importance are proposed in this section primarily focusing on providing connectivity with Arunachal Pradesh. A broad gauge railway track is proposed from the existing rail head at Bhalukpong to Tawang via Tenga & Dirang. Another Lakhimpur-Bame-Silapathar line is proposed from North Lakhimpur to Silapathar via Bame & Aalo The terminal station of the section is also expected to be moved from Murkongselek to Parshuram Kund in Arunachal Pradesh, via Pasighat and Tezu and to further connect it to the Lumding–Dibrugarh section at Rupai.^[11]

The 25 km (16 mi) long Silghat Town-Dekargaon new line project has been sanctioned to connect Silghat on the south bank of Brahmaputra on the Chaparmukh-Silghat branch line with Dekargaon. This also entails the building of a new railway bridge across the Brahmaputra River.^[12]