I was also wondering the same that why DD International when we have DD India but, now I realised that DD India is India's English News Channel for India and billions around the globe. But it didn't cover International topic 24*7 like BBC, CNN, Al Jazeera, etc. covers.
We can't forget how politician made COVID situation in India as Indian Varient and in Singapore a Singapore Varient which could let to International dispute between two countries who are close to each other.
There are many topics on which India put it's thoughts but, our news channel didn't cover that but they showcase their own views on it. Like recently Hamas and Israel attacks on each other, News channels were taking side of Israel but official Statement of India was for peace.