The Single Window Admissions System is a process through which students completing 12th Std (2 Years in Kindergarten + 5 years in Primary School + 5 years in Secondary school + 2 years in High school) apply and gain admission to Engineering Colleges that are located within Tamil Nadu, India.
Students are graded for a total score of 200. This score is a weighted average combination of Mathematics (100) , Physics (50), Chemistry (50) scores in the Plus 2 (XII Std) examinations. A student's score determines his rank. Students are then invited, by the Department of Directorate of Education, Anna University, for an Engineering Admissions Counseling Process (also called Single Window Admissions System), according to their rank. The counseling process is held in the months of June-July every year. Students are invited to participate in this counselling process to elect the college they want to join. This is a highly visible process and is given close media attention and scrutiny. This process is frequently marred by libels and litigations of various kinds every year.