Hello, The first step will be choosing whether the course is important or studying in a particular college is your priority. Next research about whether any post graduation is available in that college itself so you may get ad added guidance form your seniors. You need to check about the following facilities

• Laboratories
• National rankings
• Placement records
• Faculties
• Environment -like how much exposure you can get from other departments, any exchange program available
• Library support
• Fees structure
• Hostel facilities

You may sort your priorities on your own and arrive at your own order of preference. You can use this link to compare the details of the instituitons https://university.careers360.com/colleges/list-of-bsc-universities-in-maharashtra

Best wishes.