Hello Hardik,

Assuming your category to be open, based on your rank, you should be eligible to appear for JEE Advanced. For more details about the same, refer to the following link:

https://engineering.careers360.com/articles/jee-advanced-eligibility-criteria

Coming to your admission in IIST, you need to appear for JEE Advanced first. You can refer to the following link for more details:

https://engineering.careers360.com/articles/iist-btech-cutoff

All the best!