|Indravati (ଇନ୍ଦ୍ରାବତୀ ନଦୀ
Chitrakoot Falls on the Indravati
|States||Odisha, Chhattisgarh, Maharashtra|
|- left||Nandiraj River|
|- right||Bhaskal River, Narangi River, Boarding River, Nibra River, Kotri River, Bandia River|
|- location||Dandakaranya Range, Kalahandi, Odisha, India|
|- elevation||914 m (2,999 ft)|
|- location||Somnoor Sangam, Sironcha, Gadchiroli, Maharashtra, India|
|- elevation||82.3 m (270 ft)|
|Length||535 km (332 mi)|
|Basin||40,625 km2 (15,685 sq mi)|
It originates from the Eastern Ghats of Dandakaranya range in Kalahandi district and flows through Nabarangapur District, in a westerly direction; enters into Jagdalpur in Chhattisgarh state. This is the largest river for Nabarangapur. It further traverses in the westerly direction and thereafter in southern direction before finally meeting Godavari River at the border of Maharashtra, Chhattisgarh and Telangana. The river during its course forms the boundary between the states of Maharashtra and Chhattisgarh at various places.
Most of the river course is through dense forests of Nabarangapur & Bastar. The river flows for 535 kilometres (332 mi) and has a drainage area of 41,665 square kilometres (16,087 sq mi).
Source and flow
The river Indravati rises at an elevation of 914 metres (2,999 ft) in the Kalahandi district of Odisha on the western slopes of the Eastern Ghats. It flows west-ward through the Kalahandi, Nabarangapur and Koraput districts for 164 kilometres (102 mi) and after forming the boundary between Odisha and Chhattisgarh states for 9.5 kilometres (5.9 mi), enters the Bastar district of Chhattisgarh. After flowing 233 kilometres (145 mi) in Chhattisgarh, it turns south and flows along the boundary of Chhattisgarh and Maharashtra for about 129 kilometres (80 mi) and joins Godavari River at the junction of the boundaries of Maharashtra, Chhattisgarh and Telangana states.
The Indravati sub-basin covers a total area of about 40,625 square kilometres (15,685 sq mi). Indravati has a catchment area of 7,435 square kilometres (2,871 sq mi) in Odisha. The length of river is about 535.80 kilometres (332.93 mi), and starting from the hills of Kalahandi, it joins the Godavari river near village Bhadrakali in Bijapur district of Chhattisgarh. It has a well-defined course from its origin to its confluence with the Godavari River. Starting in a south-east direction as a small rivulet in Odisha, it later runs in western direction through Bastar district of Chhattisgarh until it is deflected and runs north-west and then again takes a turn to the south-west. During its total course of 535.80 kilometres (332.93 mi) the river drops by 832.10 metres (2,730.0 ft). Its bed level at its junction with the Godavari River is of the order of R.L. 82.3 m compared to the level in Kalahandi from where it takes off is 914.4m.
Indravati and Sabari are interconnected naturally in Odisha area. Indravati waters overflow into the Sabari through Jaura nallah during floods.
The major tributaries of river Indravati are Keshadhara Nalla, Kandabindha Nallah, Chandragiri Nalla, Golagar Nalla, Poragarh Nalla, Kapur Nallah, Muran River, Bangiri Nallah, Telengi Nallah, Parlijori Nallah, Turi Nallah, Chourijori Nallah, Damayanti Sayarh, Kora river, Modang river, Padrikundijori river, Jaura river and Bhaskel river.
The important right bank tributaries of the Indravati are Bhaskal, Narangi, Boarding, Nibra, Kotri and Bandia. The important left bank tributary is Nandiraj.
Indravati Dam or Upper Indravati Hydro Power Project built near Mukhiguda, Kalahandi is one of the largest Dam in India as well as Asia. It is the largest dam in eastern India which produces 600MW of electricity. The Upper Indravati Project envisages diversion of water, of the Indravati river in its upper reaches into the Mahanadi valley for power generation and irrigation.
The project involves construction of 4 dams across the Indravati and its tributaries 8 dykes and two inter-linking channels to from a single reservoir with a live capacity of 1435.5 Mcum, 4.32 km. tunnel, a power house with installation of 4 units of 150 MW each turbines, 9 km. tail race channel and an irrigation barrage across Hati river with the associated irrigation canals i.e., Left Canal and Right Canal.
Irrigation from left canal is done in Kalampur, Koksara, Junagarh and Dharmagarh Blocks in Odisha where Asia's longest aquaduct is made on Tel River near Odisha border. And right canal is done is Junagarh (Nandol area)and Bhawanipatna Block, the construction work is under process in Karlapada block where it merges with Ret River. The water comes from mainly Indravati River, Pet fula Naal etc.
Other Dam proposals
A total of five hydroelectric projects (Kutru I, Kutru II, Nugur I, Nugur II and Bhopalpatnam) were planned on the stretch of Indravati River at various points in time. But none could see the light of the day due to ecological concerns raised in various fora.
According to Interstate Agreement as per Godavari Water Disputes Tribunal (GWDT) Report, the State of Odisha has to ensure 1.3×109 cubic metres (45,000×106 cu ft) (45 TMC) of water at the Odisha–Chhattisgarh border.
- Indravati Power Station from Internet Archive
- Damning the Indravati? from Internet Archive
- Indravati National Park, Chhattisgarh