So its the story about my roommate.
He was an anime freak. He made friends in the campus and got connected with the one’s who are also anime fan. Roughly within 2 months he got 15–20 peoples who are interested in anime.
So it all started there, they established a club and it continued, made a group on facebook and got their club name too.
I have never been in a club before so I don’t know the criteria for a club making. But I think the above example can help you on how to approach people for a club.