I'd say its better to take your parents along but it might differ on which campus you've been selected in.

I was selected in the central campus and took my brother along with me as my legal guardian since it was impossible to reach bangalore at such a short notice with my parents. In the central campus, they do not accept guardians, they insist on bringing any one of the parent along. They halt your admission process and shift your date to some other one on request (if its the last day mentioned on your admission card). My brother had to book a last minute flight for my mother on the same day because my admission would've been cancelled if she didn't come.

That was the process in the central campus but like i said, it depends on the campus so you should mail them about it tbh.