CBSE 12th

Hi Tanish
Best varies from individual to individual. Choose the subject or program basis your interests, aptitude and career plans. Do more research career options of various subjects in your branch, know what your interests are. It is a personal choice. Also, you have not mentioned your subjects to list out any relevant options.

Hi Rajesh, enroll into a BA or B.Sc (Honors) programme in psychology. Check here for college options and specific requirements:
https://www.shiksha.com/humanities-social-sciences/psychology/colleges/colleges-india

Hi, you must take JEE Mains and Advanced to further qualify for IIT. Check this predictor tool to have an idea about the IITs:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictorv

Yes, but only from management quota as our entrance exam have been already conducted.

B.Com is a good option.

If you are good in maths you can do B.Sc maths or BBA or B.Com. Even you can opt engineering. Everything depends upon your area of interest.

Hi,
Kindly check the official website for the information you are looking for:
http://www.cisce.org/isc_XII_Syllabus-2016.aspx

Hi, cut-offs are usually very high for the top colleges. You have to wait for the merit lists to be announced. Also, you have to clear the entrance exams, if any, set by the colleges. You may check this link
https://www.shiksha.com/it-software/bca-chp14

The scope is huge. But you should be able to cope up with the study burden and you will be questioned about it in every job interview so you should be able to justify your choice.

Hi Aamir, there is no course which can guarantee you a job. Your job prospects will depend on your academic performance and qualification. Bachelor degree courses such as BBA, BMS,BBS and B.Com are preferable.