Dear Malini,
I would like to help you in writing a review about your college.
You need to explain your college Experience. By sharing your college experience it can  help others to understand more about your college.
Start with your College Name.
Mention the locality/location of your college.
The Course which you have done there. Write about it.
After the completion how was the Placements offered by your college.
Infrastructure & Hostel availability can also be good points in the review.
You can talk about the Faculty & Course Curriculum for your course
Other Details for your course such as various events and sports. Share those experience as well
Overall this will make up review of your college.

I hope this information helps you.

All the best