[6] The railway track passes through hilly areas interspersed with valleys of the tributaries of the Mahanadi, the important amongst which are the Ong and Tel.

[8] It passes through the rocky Mahasamund district of central Chhattisgarh before entering Odisha.

Ib Valley Coalfield has reserves of 22.3 billion tonnes, the third highest in India.

[16] Sterlite Energy Ltd. (of the Vedanta group) has a 2400 MW Independent Power Plant at Jharsuguda.

[17] NALCO operates bauxite mines on Panchampatmali Hills in Koraput district of Odisha.

It has an alumina refinery at Damanjodi, and a smelter and a rolled products unit at Angul.

[20] Bhushan Steel Limited has a presence at Meramandali in Dhenkanal district of Odisha and is currently (as of 2012) implementing a backward integration project to set up an integrated steel plant of 2.3 million tonnes per annum capacity.

[21] Bhusan Power and Steel Limited has a presence at Thelkoloi in Jharsaguda district of Odisha.

[23] A plant of the engine division of Hindustan Aeronautics Limited is located at Sunabeda, Koraput.

Between 1893 and 1896, 1,288 km (800 mi) of the historical East Coast Railway was opened for traffic.

The foreign exchange Is coming out of the U.S. President Asian economic Development Fund and we are getting 20 million dollars.

Subsequently, we found that Kantangunji via Bolangir and Titalgarh would be saving 20 miles, and investigations are going on those lines.

[37] The project was initially hit by delays in land acquisition and even after it got off progress was slow.

According to Shivaji Patnaik, the veteran Communist Party of India (Marxist) leader, "The construction for the project started way back in 1994.

[40] Construction of the 102-kilometre-long (63 mi) railway track linking Angul on the Sambalpur–Talcher–Barang branch line to Sukinda Road on the Padapahar–Jakhapura branch line is expected to be initiated in 2013, after clearing all land-acquisition related problems.

The new railway track will provide connectivity between Talcher Coalfield and the Padapahar–Jakhapura branch line with iron ore mines and upcoming industries.

[39] Construction of the 52-kilometre-long (32 mi) Jharsuguda–Barpalli rail line is essential for transportation of coal from the Ib Valley Coalfield with a potential of 90 million tonnes per annum.

[44] Electrification of the Titlagarh–Sambalpur–Jharsuguda and Angul–Sambalpur sections were sanctioned in the Railway Budget for 2012–13 dedicated to nation by Prime minister Narendra Modi on 15 January 2019.