What should a person from a non IT background begin with if he or she wants to get into IT? Any set roadmap??

Answer 1

Actually, Sololearn is a perfect place for such cases - you can learn the basics pretty quickly and get an idea of what's what and how/when should be used. It later enables you to choose your own path - whether you want to delve into application programming, web design, networking or data manipulation - you can always find your weapon/tool of the trade.

Answer 2

Depending on which particular area is of interest to you, that is:
https://www.sololearn.com/faq/#q1

Answer 3

so u mean just pick up any language and start learning?