CBSE 12th

You have to appear in its entrance exam.

Mechanical engineering is an evergreen branch of engineering with steady scope for last five decades. Mechanical engineers are required by all type of Industries and sector. Doing B.Tech in mechanical engineering after 12th is an excellent choice.

Hello Deepak,
As per your rank, its very tough for you to get any reputed colleges, however, you may look forward for other exams or may opt for management quota seats in any of your preferred private colleges.
All the best

Hello Amit,
As there is no weightage of 12th marks, the students who didn't score well in boards but managed to score well in JEE is only beneficial, there will be not any major changes in cutoff of NITs, but as cutoff slashed by 19 marks from last year a score near about 150 -160 land you to a good nit's.
All the best.

Personal trainers don't always necessitate a college degree, though many are increasingly opting for one, and employers prefer at least a Bachelor's in a fitness or health field. However, many personal trainers hold certification, which can sometimes be substituted for formal education.
Being a commerce student, you cannot do the courses related to nutrician.

You may please confirm which organisation for cyber cell do you want to join. Are you looking for information on becoming cyber security expert?