Picked it up, read enough before the semester, picked up the required coding, brain research skills and was set to get in.
And the rest is thereafter.
But the best takeaway for someone reading this, is that it's fascinating to do something technical, especially if it's your calling, and even if you don't have any background in it. Just try.
Did I mention the background part?
I studied Commerce oriented subjects for my A-levels equivalents, 11th and 12th grades, in uni I was doing a business degree, at the new university I was about to go to (parallely, I was transferring to Ashoka, a liberal arts & sciences uni) I was going to do PPE.
I wasn't even app-building capable with Python from 0 myself. Yet I just went in.