Answer : 1. "Republic of Korea"
Explanation :

Solution: Indian Prime Minister Narendra Modi extended his greetings to the President of the Republic of Korea, Shri Yoon Suk Yeol on the completion of 50 years of establishment of diplomatic relations between India and the Republic of Korea. In 1973, India formally recognized both North and South Korea and established diplomatic relations. By 2022, trade volume is projected to increase to US$27.8 billion. Currently, major South Korean conglomerates including Hyundai Motor, POSCO, LG Electronics and Samsung Electronics are operating in the Indian market.