Some of my friends studied at Shivaji University, so let me share their experiences, which might give you some options on what to do on the weekends.

• If you prefer spending time in and around the campus, late at night the student union organizes a weekly event that includes different themes from karaoke, art and crafts, games, and much more.
• You can also take part in sports events both by watching or participating in them.
• There are many temples to visit like the Mahalaxmi temple and Jyotiba temple situated on hills. 
• You can also visit Panhala fort which is nearby Kolhapur.
• If you do not prefer outings on the weekends, you can stay at your hostel and work on your communication and personality development skills. 
• You can start by solving Aptitude, mathematical and logical questions. 
• If you get tired you can relax and watch movies, roam around with your roommates or friends. 
• Also, try practicing meditation or yoga to maintain your concentration and health.

Therefore there are a lot of things you could do during the weekends, be it staying indoors or roaming outdoors, there is a scope to indulge in any extracurricular activities.