Why is India unfriendly to South Korea?

I am worried about South Korea's influence in South Asia and its relationship with China.

1. South Korea, as a strong Asian country and a top ten country in international GDP, has many interests in South Asia, and India is worried about South Korea's influence in South Asia.

2. Worried about China-ROK relations. China is South Korea's largest trading partner and largest investment target country, and South Korea is China's fourth largest trading partner and third largest source of imports. China and South Korea have close trade relations, and India is worried about the close relationship between South Korea and China.