Every year, the application window for Humanities and Social Sciences Entrance Exam (HSEE) is open in the month of December and exam helds in April. Also, for 2018 session the applications are going on till 24th-Jan so if you want you can apply for the same.

To check the eligibility criteria and the application process, you can go through the below link-

http://hsee.iitm.ac.in/elig_crit.php

http://hsee.iitm.ac.in/online/instructions.php

Good Luck!!!