National Institute of Fashion Technology, Delhi

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)

Yes, in order to be eligible for most of these Diploma programs you only need to be intermediate.
Please go to this link to get to know more about the programs.
http://nift.ac.in/cep

The timings of the classes are 9 AM to 5:30 PM. It may change based on your weekly schedule.
There's nothing like a learn and earn scheme but you can always work as a freelancer to earn enough money to make your ends meet.

One year course is a diploma course whereas the 4 year course gives a degree. You should first try for BDes or BFTech and keep this one year course as a backup

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).

No, National Institute of Fashion Technology, New Delhi does not have hostel facilities for boys. However, there are a number of PGs and flats in the nearby locality (Hauz Khas and Green Park). You can check it out.