Government of India 
Activities
The activities of NTBO are:
- Flood Forecasting
- Hydrological Observation
- Water Quality Monitoring
- Monitoring & Appraisal of Major and Medium Water Resources Projects.
There are two types of forecasting sites under NTBO,CWC :
- Level Forecasting and
- Inflow forecasting
Executive Engineer of the Division is the nodal officer for flood forecasting in respect of sites under that Division.
FF for 6 river basins viz Banas, Damanganga Basin, Mahi Basin, Narmada Basin, Sabarmati Basin and Tapi Basin is done by NTBO, CWC.
Level forecasts are issued for 7 sites, inflow forecasts are issued for 6 reservoirs. These are as follows:
| Basin | Level Forecasting Stations | Inflow Forecasting Stations |
|---|---|---|
| Mahi Basin | Wanakbori Weir | Kadana Reservoir |
| Sabarmati Basin | Ahmedabad (Subash Bridge) | Dharoi Dam |
| Banas Basin | Dantiwada Dam | |
| Tapi Basin | Surat | Hatnur Reservoir |
| Ukai Reservoir | ||
| Damanganga Basin | Vapi | Madhuban Dam |
| Daman | ||
| Narmada Basin | Garudeswar | |
| Bharuch |
There are 90 sites for various hydrological observations, including water quality monitoring stations, are being maintained by NTBO, CWC.
There are 37 Gauge sites under NTBO.
There are 14 Gauge and Discharge Sites under NTBO.
There are 01 Gauge, Discharge and Sediment Sites under NTBO.
There are 15 Gauge, Discharge Sediment and Water Quality Sites under NTBO.
There are 15 Rainfall Sites under NTBO.