Investigation Circle, NWDA, Bhubaneswar
Works Entrusted with the Investigation Circle, NWDA, Bhubaneswar
Name of Work Progress Achieved

NWDA Completed 137 Water Balance Study (WBS) of basins/sub-basins and 71 WBS of diversion points proposed under the Peninsular and Himalayan Components of National Perspective Plan (NPP). In addition to this, NWDA is also engaged in preparation of new WBS reports as and when required pertaining to Intra State as well as IBWT Link projects. The revision/updation of these WBS reports incorporating latest data/observations of concerned State Governments/various Departments are a continuous technical job of the Investigation Circle (IC) and attached Investigation Divisions (IDs) of NWDA. Accordingly, the works entrusted to the IC/IDs are:

I Preparation /Revision/Updation of WBS Reports
(a) Raidak sub - basin Draft report prepared and the same is under scrutiny.
(b) Jaldhaka sub-basin Draft report prepared and the same is under scrutiny.
(c) Torsa sub-basin Draft report prepared and the same is under scrutiny.
(d) Aie sub-basin Draft report prepared and the same is under scrutiny.
(e) Revision of PWBS of Kosi at Kosi at high dam Draft report prepared and the same is under scrutiny
II Intra State Link Projects

Pre-Feasibility Report (PFR)/Feasibility Report (FR)/ Detailed Project Report (DPR) have to be prepared by the IC/IDs on the proposal as and when received from concerned State Government(s). So far NWDA have received 47 Intra State link proposals from various State Governments. The Intra State link studies presently targeted by the IC/IDs are:

III Preparation of PFRs/FRs of Intra State Link Projects
(a) Mahanadi Rushikulya (Baramul) Link Project (Odisha) Draft report prepared and the same is under scrutiny.
(b) Mahanadi – Brahmani Link Project(Odisha) Draft report prepared and the same is under scrutiny.
(c) Pairy-Mahanadi Link project (Chhattisgarh) Draft report prepared and the same is under scrutiny.
IV Preparation of DPRs of Intra State Link Projects

After approval of the PFR/FR, of the Intra State link projects, its DPR has to be prepared with the consensus of concerned State Government(s). Accordingly, the DPR preparations undergoing in the ID/IDs are:

(a) Vamsdhara-Rushikulya Link Project Preparation of draft report is under progress.
V Preparation of PFRs of Inter State Link Projects
(a) Sankosh-Godavari Alternate Study of Sankosh-Teesta-Ganga Link Project Draft report prepared and the same is under scrutiny.
VI Preparation of FRs of Inter State(IBWT) Link Projects

The then Ministry of Irrigation (Now the Ministry of Water Resources, River Development and Ganga Rejuvenation) and Central Water Commission (CWC) formulated the NPP for Water Resources Development in 1980, by envisaging Inter Basin Water Transfer (IBWT) Project from surplus river basins to deficit ones with a view to minimize the regional imbalances in water resources and optimally utilize the water resources available.

(a) Gandak-Ganga Link Draft report (Indian Portion) prepared and the same is under scrutiny.
(b) Manas-Sankosh-TistaGanga Link Project Preparation of draft report is under progress
(c) Sankosh-Tista Ganga Link Project Draft report prepared and the same is under scrutiny.
(d) Ganga-DamodarSubarnarekha Link Project Draft report prepared and the same is under scrutiny.
(e) Farakka-Sundarban Link Project Draft report prepared and the same is under scrutiny.
(f) Subarnarekha-Mahanadi Link Project Draft report prepared and the same is under scrutiny
VII Preparation of DPRs of Inter State(IBWT) Link Projects
Mahanadi-Godavari link is the mother link of the nine link systems of Mahanadi-Godavari-Krishna-Pennar-Palar-Cauvery-Vaigai-Gundar.NWDA has completed the Feasibility Reports of these links. The Government of Odisha is not agreeable to the Mahanadi-Godavari Link proposal due to considerable submergence involved in the proposed dam site at Manibhadra which is the proposed diversion point of the Mahanadi-Godavari Link. Consequently, NWDA has prepared a revised proposal for the Mahanadi-Godavari Link with the minimum submergence and comparable benefits. The present revised proposal is named as Mahanadi-Godavari Flood Moderation Project. Various Components of the revised proposal are under discussion with the State Governments of Odisha and Chhattisgarh including the water balance studies conducted by NIH, Roorkee.