Getting admission in IIT Madras can be a highly competitive and rigorous process, but here are the general steps to follow:

• Meet the Eligibility Criteria: Before applying to IIT Madras, you need to ensure that you meet the eligibility criteria, which may vary depending on the program you wish to pursue. Generally, you should have completed your 10+2 with Physics, Chemistry, and Mathematics as compulsory subjects and obtained a minimum of 75% marks (or a rank within the top 20 percentile) in your Class 12 board exams.
• Appear for JEE: The next step is to appear for the Joint Entrance Examination (JEE) Advanced, which is conducted annually by one of the IITs. Only those who qualify for JEE Main, conducted by the National Testing Agency (NTA), are eligible to take the JEE Advanced exam.
• Clear JEE Advanced Cut-off: Based on your performance in JEE Advanced, you will be given a rank, and the cut-off rank for each program will be released. You need to score above the cut-off rank to be eligible for admission.
• Register for JoSAA Counselling: After the results of JEE Advanced are declared, you will need to register for the Joint Seat Allocation Authority (JoSAA) counseling process. You will have to fill in your choices of courses and colleges based on your rank.
• Attend JoSAA Counselling: JoSAA will conduct a number of rounds of counseling, and seats will be allotted based on your JEE Advanced rank, choice of courses and colleges, and availability of seats. You will need to attend the counseling process, and if you are allotted a seat at IIT Madras, you will need to confirm your acceptance by paying the admission fee.
• Complete the Admission Process: After accepting your seat, you will need to complete the admission process by submitting all the required documents, including your Class 10 and 12 mark sheets, JEE scorecard, and other relevant certificates. You will also need to pay the fees and attend the orientation program.

It's important to note that the admission process may vary slightly depending on the program you wish to pursue and the category you belong to. It's advisable to regularly check the official IIT Madras website and JoSAA website for updates and notifications regarding admission.