CBSE

Dear Prashant, you are eligible for admission in B.Com course. The fee structure for B.Com is Rs. 30,000 p.a. For further details, you will receive a call soon.

https://googleweblight.com/i?u=https://www.shiksha.com/bba/colleges/bba-colleges-india&grqid=gYVeQpVV&s=1&hl=en-IN
Here is the link, where you will get list of the colleges accepting this marks. Visit the link and take admission in the college you want to. Good luck.

There is book named U-like is available in market. This book has all the questions papers of previous year's and important question.

Of course, you can get admission for B.Tech. The fact is you will not get reputed college. After looking at your score you will end up with some local private institute. Although your 12th percentage are good but it won't help. As, per criteria colleges first consider your JEE score. There is one more choice to get top colleges that is through management quota. While applying through management quota you have to pay huge amount of fee as donation in terms of getting admission. So, if you are ready for management quota then go for it unless you have to go with your score and look out for some private institute.
Best of luck.

1. CBSE releases the CBSE improvement exam forms at the end of July/August on their official site.
2. You can appear in all 5 subjects. Intact, if you're AJEE aspirant then you are required to take up exam in all (5) subjects.
3. You will decide the district of the exam centre.
4. Admit cards will be made available in the month of February. You can download it from the official site. Marksheet will be available on the site after the declaration of Boards result. Stay motivated throughout the year and you can score very well. Keep away from distractions for a year.
All the best.

Yes, the syllabus is same but the pattern of annual examination is somehow different in both of them.
Hope I have solved your query. Do upvote if you are satisfied with the answer.

Yes, you can look for colleges under Annamalai and Bharathiar University. They offer courses with less fee and a large number of seats will be always there.

Sorry, no chance in IIIT Delhi with this rank. Your CBSE score is good but, your JEE rank is not good for admission if you want CSE.

Registration for Architecture Aptitude Test commences after the announcement of IIT-JEE Advanced results. Eligibility Criteria for AAT Only the applicants who successfully qualified JEE Advanced can appear for AAT to get admission to B.Arch. Hence you are not allowed for AAT examination because you did not write JEE Advanced.