Hi Student

You are correct . One NID has 100 seats so the three of them will have 300 seats .

You can read more about the college in the link given below :
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.nid.edu/&ved=0ahUKEwiOwf2Yx7LkAhVRjOYKHVGCA8QQ_BcIeCgLMAI&usg=AOvVaw3CIVDX0s9KUzqGzSYvqcwn

OR

https://www.google.com/amp/s/www.careers360.com/university/national-institute-of-design-ahmedabad/amp

You can comment your further queries in the comment section below.


Best Wishes
Era Madaria