Concern regarding academics!

I’ve heard that the academics are quite rigorous, and I’m a little concerned because I consider myself an average student. Is the workload really as intense as people say? Is it manageable if I attend classes regularly, stay consistent, and study throughout the semester?

How difficult are the exams compared to boards or entrance exams? Is it realistic to maintain a good CGPA (around 8.5–9+) without constantly feeling overwhelmed?

Also, how much free time do you usually get for clubs, hackathons, internships, or just relaxing? I’d really appreciate hearing about your honest experience and any tips you have for managing academics.