Hello Aspirant,

After obtaining a diploma, there is no option to be admitted to an IIT. For engineering undergraduate programmes, JEE Advanced is the exclusive route to admission to IITs. Applicants trying to find out how to get into IIT after graduating.

JEE Main: Applicants must register for and show up for the Joint Entrance Examination (JEE Main), which serves as a common entrance for engineering admissions into a variety of institutes. However, not all of these institutes admit diploma holders, so if a candidate chooses to apply for admissions to institutions other than IITs, they will need to do so at their own expense.

Earn a spot in the top 2,50,000 JEE Main rankings – Candidates who place in the top 2,50,000 JEE Main rank holders are qualified to appear for the JEE Advanced test.

JEE Advanced: As was previously said, applicants who receive a qualifying score of less than 2,50,000 in the JEE Main test are required to register for the Joint Entrance Entrance Examination JEE Advanced.

Refer the below link for details:

https://engineering.careers360.com/articles/how-get-admission-in-iits-after-diploma

ALL THE BEST

Hello aspirant

A diploma in engineering candidate  can appear for jee mains and after qualifying jee mains entrance exam among first 2,50,000  the candidate must appear for jee advanced and after qualifying jee advanced he or she can get admission to IIT college .

The candidate should have a good score abd appear for JoSSA counseling .

After the above process the candidate will get a seat in IIT Institute.