Hello,

Which college are you enquiring about and for which course?

If the college you're seeking admission has the facility of online admission process then visit the official website, from there itself you will get the complete details, you just need to go through the same, and if the link is active at the site, then you just need to fill in your personal, academic, and other essential details, upload photo, signature, or any other documents if necessary, please go through the prospectus regarding this, if fee payment is required you have to do the same, also don't forget to take a print out of few copies for future reference, this is just a general idea I've given, if you want to know about elaborate information for that you need to mention the name of the college  in the comment box below,