If I do randomly vote ups on random questions/answers is there any adverse effect happened on my user profile?
If yes what type of adverse effects will be there?
I believe the adjective you means to write was adverse. Meaning a negative effect on your profile.
If that is what you mean then there is no adverse effect.
You did use the word
If this happens on more than one occasion the user might be eligible for a mod message and/or a slap on the wrist...
That said - please don't just cast random votes in order to get badges.... You can just as easily vote correctly on posts and get the badge in anycase. There is no shortage of posts to vote on. Throwing around random votes really upsets the system becuase those votes count for the helpfulness of the post. The more people who upvote the answer; the more that answer will be regarded as a good answer and vice versa for bad answers.
No random votes on this post please ;)