CBSE 12th

Hi Hemani,
Universities abroad have their SET deadlines and application rounds. Depending on the university you have to apply by the deadlines. Usually if you are applying to USA admission rounds starts opening from Aug onwards and you can start classes only from the following year. Its not like you apply in July and start classes from Aug same year. One year is required for the entire application process.

You need to have minimum 75% marks in mathematics/statistics/economics and 80% marks in geography (arts) or with physics, chemistry and 60% marks in mathematics (science).

Only private universities are a choice for you and that too from management quota or else, you have very slim chances to get into universities.

It denotes graduation only, as if your qualification is graduation, then it means that you must pass your senior secondary exam. You can go through it, you ful-fill the criteria.

Hi Divanshu,
Yes, if during the improvement exams your marks did not get any better the previous marks will be considered. The best of two is considered so whichever score is good that will be taken into account.

Hi, not necessarily.
Nowadays, once also opt for computer Science instead of chemistry. So, your subjects will be Physics, Maths and Computer Science with physics major. Alternate options can be there too depending on the college. But if you want to pursue research studies in this field then B.Sc/M.Sc and Ph.D. is the only way.

You must have passed 10+2 conducted by CBSE Delhi or any equivalent exam, including Indian School Certificate Examination. If you have the qualifying exam in compartmental, you will not be eligible for the admission.