Following are the hydropower projects, being handled by OIBN:
- Arun- 3 Hydropower
- Upper Karnali Hydropower
- Upper Marsyangdhi-2 Hydropower
- Tamor Hydropower
- Lower Arun Hydropower
- West Seti + SR 6 Hydropower
Following are the hydropower projects, being handled by OIBN: