CBSE 12th

Yes, you can do B.Com from MDU.

Hello Akshat,
Yes, it is necessary. Though you have a good percentage in board exams the admission is based on the ranks in JEE Advanced and so you need to write JEE Mains as well as JEE Advanced.
You need to have a minimum of 75% to be eligible to write JEE.

Hi Sail,
No, the procedure is very different in foreign countries than that of India. In Indian colleges, you generally go through written test and creativity test. But abroad, it's all based on your portfolio and personal interview. There isn't any kind of writing or drawing test.
For more information, you should consult "Edwise ". They consult free of cost. If you will apply to a college thorough them, then the chances of getting admittions in a college will be more. They will also guide you for Visa and ILETS.
All the best.

In 2017, around 12 Lacs students are expected to appear for JEE Main on April 2, 2017 in offline mode and on April 8 and 9, 2017 in online mode. Basis their performance in this exam, 2.2 Lacs students will get a chance to appear in JEE Advanced scheduled on May 21, 2017. Some important tips to crack the JEE Mains are mentioned at the link provided below:
https://www.shiksha.com/b-tech/articles/jee-main-how-to-attempt-questions-and-maximise-your-score-blogId-13982

Hello Hridkamal, With your percentile, you can expect to get admission in very good B school. Just remember CAT is only one screening. You will have to go through some more and as you score, your chances will keep on improving.

Hi, You may follow this book on Amazon:
http://www.amazon.in/Crack-IIM-Indore-Entrance-Examination/dp/9332560153/ref=dp_ob_title_bk

Yes, you are eligible for scholarship in Amity for MBA.
The scholarship pattern for MBA is -
For 100% Scholarship
Eligibility - Students securing 93% aggregate and above ((excluding Physical Education/ Fine Arts / Performing Arts / vocational / non written subjects) in CBSE/ ICSE Board of Class XII and 80% in Graduation.
For 50% Scholarship
Eligibility - Students securing 90% aggregate and above (excluding Physical Education/ Fine Arts / Performing Arts / vocational / non written subjects) in CBSE/ ICSE Board of Class XII and 75% in Graduation.

You might not be eligible for BCA due to age restriction . For more details, check out the link below :
https://www.shiksha.com/it-software/course/bachelor-of-computer-applications-directorate-of-distance-education-Punjab-technical-university-Punjab-other-283883

You should definitely be a teacher. Pick a subject you are good in and pursue it. If you like explaining things and making others understand a topic, you are truly gifted. Please refer to the link provided below for a list of careers which you can pursue after class 12. Select the stream you want to pursue and pursue it with great conviction. Good Luck!
https://www.shiksha.com/careers