National Institute of Fashion Technology Delhi Hauz khas Answered Questions

Well, of course you need to be very good at English vocabulary which, for me is the key point to crack the GAT paper. Apart from English, one should practice class 10th level Maths.
General knowledge is important related to every field. Not only GK, but class 10th level history, geography, general science is also a part of the paper.
Regarding CAT, it doesn't matter if you are not very good at drawing, what matters is the idea and the concept one uses to depict something in particular through the drawing.

Just follow your dream and interest. Because if you have no interest in engineering then you won't be able to study properly and might regret later for wrong choice. If fashion is what you are interested in then you should definitely opt the same as this will be the deciding point of not only your career but your whole life.

The fee for Masters program is 4 lacks in total. For Bachelors it's little more. Here is a link to the prospectus of NIFT. You will find all the details related to fees and other charges.
http://nift.ac.in/sites/default/files/2017-11/Prospectus2018( Final)10Nov.pdf
(Copy paste the above link into the browser)

If you are well determined, then it is not tough to crack the cut off score. You can go through some of the previous years' questions and yes, any course in national institute of fashion technology is worth doing (only if you have interest in it).

The first year at NIFT is the foundation year in which you spend around Rs 1,000 each month on stationary and other materials. In the second year you go to your respective departments (example: fashion design, accessory design, fashion communication) and the expenditure varies from course to course. In fashion designing, there's no limit to the expenditure on fabrics. The fabrics range from 100rs/meter to 2000rs/meter. So to give an estimate on the expenditure is actually not possible. It's completely upto the student and his taste.