What are the basics one should learn for becoming a coder/app developer if one not from the it/comp background.

Answer 1

It is not so important to be from IT background. Just take any language and start learning the basics aaand coding, coding, coding ;)

Answer 2

First you should determine your domain: what do you want to develop?
If you want to develop websites and web applications, then start from HTML, CSS, JavaScript, Python and MySQL would be the best set of tools

Answer 3

suggest me something from basic in that line

Answer 4

If you want to develop mobile applications, learn Java, XML and start developing Android apps using Android Studio ;)