IIT Guwahati generally provides the list of students currently enrolled in various courses on its official website. You can see the list under the current students tab on the specific department page. To maintain privacy and security, only the name, roll number and email ID of the students are provided on the website.
For more detailed information, you may have to connect with the department or the admission office at IIT Guwahati. It can guide how to connect with the students. Additionally, there are online IIT Guwahati student pages and groups which you can join to find the enrolled students. The official website also features student lists of the previous years.