Though maximum start-ups come up in information-technology sector, however there are many other who want to venture out, in their respective field, but fall short of guidance or motivation due to lack of start-up culture in their non-IT field.
What are some of the common basic preparations needed for a start-up in any field?
There are quite a few, some related, some not:
This is by no means an exhaustive list but these will certainly get you going.
I like to recommend people read Art of the Start from Guy Kawasaki. A good book on general startup principles, what to expect, etc. Applicable to any type of startup, not juts tech.
Goals. 1, 2, 5, 10 and 20 year goals. Just wanting to do something isn't enough because after you "do it" where are you going to be? what are you going to do?