Being a top university, it attracts lots of students from not only all over the country but also students from various countries around the world. So it is quite obvious that you would encounter many Sikh students at the university as well.
You may also be lucky enough to share your room with a Sikh student for the next 2 or 3 or 4 years of your life. There might be a possibility that the students of Punjab (who are predominantly Sikhs) are accommodated with a person of the same region. You have got a very good chance of staying and making friends with one.
The college is truly cosmopolitan and has a Gurudwara as well for the Sikh devotees. The most famous festival of the Sikhs, Baisakhi, is celebrated with much pomp and show during which there is a grand display of Gatka, Nagar Kirtan, Paath, and finally a Langar which is open for all the students of the university.