Is there any free online videos or course like NID NODE Just to prepare and know basics of Design?
Hello,
Search in edx,Coursera and nptel webpage. They have course from multiple domains. You can get some from there. These are webpages of top universities and institutes. You can also look in Unacademy which is a private course provider.
You can also try for private webpages like Udacity, udemy, Alison. There are many more. You can search for a suitable one.
Hope it helps!