Answer : 3. "जल शक्ति मंत्रालय"
Explanation :

The Department of Water Resources, River Development and Ganga Rejuvenation of the Ministry of Jal Shakti is organizing an International Conference on Dam Safety in Jaipur. The conference was inaugurated under the theme “Safe & Secure Dams Ensure Nation’s Prosperity”. Hosting over 6,000 dams in India, the event focuses on enhancing dam safety, discussing cutting-edge topics and highlighting Dam Rehabilitation and Improvement Project (DRIP) Phase II and III.