CA

Hi Harshita,
I know you must be under a lot of stress, so please try to stay calm, because the more you try to stay relaxed, more will your mind lead you to take the right path
Next, talking about your career, try to convince your parents by telling them that 65% marks are good enough for you to have a good career in future. Along with this, tell them that you can soon become eligible for a job if you go ahead with your designing career. Also, explain to them that interior designing is in demand and in trend and the interior designers demand will increase by 20% and so will be the salary scales. Another important point for convincing them can be that you can have your own setup, as well as the good colleges like Pearl Academy, NIFT, NID, VIFT, and others will provide you with the campus placement where you can have a chance to go abroad for your further job settlements.
And at last, just tell them that you can prove yourself best in interior designing and not in other fields of commerce.
Dear,
I have gone through this and just shared my own ways of handling all this, I somehow managed to get a financial assistance from my father but nothing more than that. But now, at least I do have a chance. So please, don't lose hope, everything will come to you and that may take time, but at least this will be far better than just doing nothing and regretting all the time in future for not even trying much.
Hope this will help you.
If you still you need some help with career options other than designing, just comment your problem later.
Good luck.

You will need to give various entrance exams first like CAT, CET, MAT, XAT, IBSAT, IIFT, ATMA, GMAT, etc. Applications for the same would be starting from this year for batch of 2018 probably some entrance exams application dates are also announced. Please visit the respective examination bodies and check for their enrolment procedure. Also find out as you which institute you are looking to get into and see which entrance exam scores they accept for further selection, CAT score is accepted by many of the institutions but many institutes accept multiple scores like either CAT, CET, CMAT, MAT, GMAT, etc. but if you are looking forward to get into IIM's then you would need to focus on CAT and GMAT.