The correct option is D Thiruvananthapuram
The International Conference on dam safety had started in Thiruvananthapuram, Kerala on January 23, 2018. The two-day conference was jointly inaugurated by Union Minister of State for Water Resources Arjun Ram Meghwal and Kerala Chief Minister Pinarayi Vijayan. The conference saw the participation of 550 delegates from over 20 countries. The dam safety conferences are organized as an annual event under the Dam Safety Rehabilitation and Improvement Project being run by the Water Resources Ministry.