Assuming you wish to get into the B.Tech Program of Jadavpur University.

Unfortunately, with your marks of 61 in Chemistry, 64 in Physics, and 59 in Maths, it is less likely that you will be able to secure admission to Jadavpur University. The minimum cutoff for OBC candidates in the West Bengal Joint Entrance Examination (WBJEE) for admission to Jadavpur University is typically much higher, often above 70 in each subject, a safe score would be 80 above in each subject though.

You can try to get admission through latent entry later in your second year for instance or you can try to go for other universities and colleges.

All the best!