CBSE 12th

Please write about the subjects you took in 12th for better response.

Hello Satyam Singh, yes of course. Students appearing for their 12th exam in 2022 are eligible for appearing in JEE Mains examination. Wait for the announcement by NTA about the dates of the exam. That advert by NTA will have all the required information. Else you can ask here also. Best wishes to you.

Yes, you can Fx 82 or a similar version can be used.

There are many colleges and institutes that offer courses in interior design. Here is a list of a few institutes and colleges that offer comprehensive programs in Interior Design in India. INIFD Vashi (https://www.shiksha.com/college/inifd-vashi-international-institute-of-fashion-design-vashi-vashi-Mumbai-56361 )
NIFT
NID
Pearl
UID
Srishti.

Yes, a commerce student can definitely pursue a B.Tech Degree course. All you need to do is to take up Diploma in Engineering. The eligibility for the Diploma course is 10th pass. After completing the 3-year Diploma course, you can get lateral entry in the 2nd year of Bachelor of Technology (B.Tech. ). You will get a B.Tech. Degree in the next 3 years.