Yes, done a few minor edits Yes, lots! No, not yet Don't use wikipedia much

Yes. Though anyone can edit it, it is well moderated by the moderators and the community. So that makes the content authentic No, this way, anyone can add any material. Cause for trouble. I like it, but I am a little sceptical about the whole idea

Yes, vidyamandir classes is the best coaching instituition for the preparation of IIT-JEE No, vidyamandir classes is not the best, career point is the best one Can't say