Answer : 4. "Thiruvananthapuram"
Explanation :

Vice President Jagdeep Dhankhar recently inaugurated the 5th edition of the Global Ayurveda Festival in Thiruvananthapuram, Kerala. The Global Ayurveda Festival (GAF) 2023 was held from December 1 to 5 with the theme “Emerging Challenges in Healthcare and a Resurgent Ayurveda”. The conference saw the participation of the Governor of Kerala, Chief Minister of Kerala, Union AYUSH Minister, Union Animal Husbandry Minister Parshottam Rupala, President of the Republic of Mauritius, Minister of State for Indigenous Medicine of Sri Lanka, among others.