Design Entrance Exam

The entrance exams are already over. You can try for Diploma courses or certificate courses at this time.

Arihant's book "NID PREPARATION BOOK"
https://www.shiksha.com/design/fashion-design/articles/tips-to-prepare-for-nid-design-aptitude-test-blogId-12206

You can refer the link for complete information:
https://www.shiksha.com/design/fashion-design/exams/nid-entrance-exam

The required score to qualify always differs according to the cut-off for qualification every year. The results are out. You can check the score yourself now.

No, there is no personal interview or group discussion in NIFT Situation test. You'll be provided with the materials and you'll just have to make the 3D model as per the topic given.

Well for the written exam, practice maths and logical reasoning and try completing model test papers available online on time. For drawing, the more you practice different types of question the better it will be. And for situation test, practice using a variety of materials that are provided in situation text and 3D model making. Watch videos and research.

You don't need any subject in specifics. Basically, you need to have a knowledge of 4 main subjects that are GK, English, maths (till class 10) and logical reasoning.

If you belong to the general category, you might get Shillong, Kannur or Jodhpur.

Well, it depends on the city which you belong to. There are many coaching centres for the preparation of NIFT entrance exam. Dezign Circle in Delhi and Prime and Opus in Kolkata.