Hello

If you're looking for bachelor's degree, then you will have to fill the JEE Mains application form. If you qualify JEE Mains, then you get to sit for JEE Advanced. And your admission in this college depends on your rank in JEE Advanced. Cut off is released after the exam.

For Mtech, either you have to score the required cut off in GATE exam or you should have at least 8 CGPA in BTECH from any IIT.

Hope this helps!