BRAHMAPUTRA AND BARAK BASIN ORGANIZATION, CWC, SHILLONG

1. North-East Investigation Division-I, CWC, Silchar
2. North-East Investigation Division-II, CWC, Aizawl
3. North-East Investigation Division-III, CWC, Itanagar

1. Upper Brahmaputra Division, CWC, Dibrugarh
2. Middle Brahmaputra Division, CWC, Guwahati

1. Meghna Division, CWC, Silchar
2. Meghna Investigation Division, CWC, Shillong

1. NORTH EAST INVESTIGATION CIRCLE, CWC, SHILLONG

1. Sonai Irrigation Project Unit
2. Rukni Irrigation Project Unit
3. Umsiang & Umri Irrigation Project Unit

1. Mizoram Investigation Sub-Division, Serchhip
2. North Eastern Investigation Sub-Division-3, Aizawl

1.  Investigation Sub-Division, Maithon
2. Jung Sub-Division
3. Investigation Sub- Division, Dumka

2. HYDROLOGICAL OBSERVATION CIRCLE, CWC, GUWAHATI

1. Upper Brahmaputra Sub-Division No. I, CWC, Dibrugarh
2. Upper Brahmaputra Sub-Division No. II, CWC, Jorhat
3. Subansiri Sub-Division, CWC, Naharlagun
4. Dhansiri (South) & Kopili Sub-Division, CWC, Nagaon

1. Middle Brahmaputra Sub-Division, Guwahati
2. Pagladiya-Puthimari Sub-Division, Nalbari
3. Barak Sub-Division, Silchar
4. Mechanical Sub-Division, Guwahati
5. Manas Sub-Division, Barpeta

3. MEGHNA CIRCLE, CWC, SILCHAR

1. Meghna Sub-Division-I, CWC, Agartala
2. Meghna Sub-Division-II, CWC, Dharmanagar
3. Meghna Sub-Division-III, CWC, Silchar

1. Meghna Investigation Sub-Division-I, CWC, Shillong
2. Meghna Investigation Sub-Division-II, CWC, Silchar
3. Meghna Investigation Sub-Division-III, CWC, Silchar

4. MONITORING & APPRAISAL DIRECTORATE, CWC, GUWAHATI

Monitoring & Appraisal Directorate, CWC, Guwahati with Director-in-charge was set up in 1995 under regionalization programme of CWC in connection with restructuring of CWE 'Gr. A' services alongwith Deputy Director to assist Director.