CBSE 10th

Yes, you can enroll as Private student for 10th class. The eligibility criteria of the National Institute of Open Schooling (NIOS) is given below. Eligibility criteria :
1. Secondary: The minimum age to take admission in the Secondary Course is 14 years as on 31st July 2019 (born on or before 31.07.

Yes, you can get it. The eligibility criteria of Diploma in Fashion design is 10th.

As of now, just be consistent in your efforts and try to score as high as possible in CAT. That should be your prime focus. Interview and selection should be a secondary concern to you but I will mention a few insights.
10th and 12th marks are of concern but if you get the interview call, prepare we

A lot depends on graduation specialisation. Class 10th marks are of concern. If you get the interview call, prepare well for it. You must showcase some achievements apart from academics and must have full knowledge about it as they will ask you in detail about it. Apart from that do maintain polite

Right now when I see CBSE, I feel that the state board has an outdated and old syllabus, so it is better to go with CBSE syllabus.