The Department of Irrigation and Flood Control in Nagaland plays a role in:

Developing irrigation infrastructure
Promoting water conservation
Managing flood risk
All of the above

The correct answer is: d) All of the above

The Department of Irrigation and Flood Control in Nagaland is responsible for developing irrigation infrastructure, promoting water conservation, and managing flood risk.

The department develops irrigation infrastructure by constructing and maintaining canals, dams, and other water control structures. This infrastructure helps to provide water for irrigation, which is essential for agriculture. The department also promotes water conservation by educating the public about the importance of conserving water and by implementing water conservation programs. Finally, the department manages flood risk by constructing and maintaining flood control structures, such as levees and floodwalls. The department also works to educate the public about flood risks and to develop plans to mitigate the effects of floods.

The Department of Irrigation and Flood Control in Nagaland is an important part of the state’s infrastructure. The department’s work helps to ensure that the state has a reliable source of water for irrigation, that water is conserved, and that flood risks are managed.