If the admissions officers think your application meets their standards, you'll be notified on the UCAS portal.
You'll receive a conditional offer subject to the criteria if you get selected. Different universities have different criteria. The criteria are usually a level of aggregate percentage that you need to obtain in your board exams.
If you meet all these requirements, you're good to go. It's a long process, so be patient and hopeful.
Hope this helped, and all the best!