Pre-service Teacher Education at Diploma level is one of the foci of TNSCERT in Tamil Nadu. It develops and renews curriculum for Diploma in Elementary Education. Source books are also prepared whenever curriculum and syllabus are revised. Pre-service Teacher Education has a holistic approach in integrating theory and practice through school experience. 
Admission to the First Year of Diploma in Elementary Education Course is doneaccording to the marks obtained in the Higher Secondary Examination and in accordance with the reservation policy of the State.

Method of Selection Process and Admission:

1. Counselling under Single Window System through online:

Admission to the first year Diploma in Elementary Education is made online. All the applicants are ranked category-wise on the basis of Higher Secondary marks secured by them and as per Government norms in vogue. Counselling is conducted by the Selection Committee at the State Council of Educational Research and Training through online. The candidates come to the counselling centre at the District head quarter in each district.

2. Process of Admission:

The applicants are ranked based on the marks obtained in the Higher Secondary Examination following the rule of reservation and other Government norms now in vogue. The merit list is hosted on the website for the convenience of the applicants well be in advance. The allotment of candidates in each of the institutions is made through Single Window System as per the choice of the candidates during the time of counselling.

3. Age Criteria:

1. OC, BC, BC (Muslim) and MBC 30 Years G.O. (D) 171, dated 25.07.05
2. SC, ST, SC(Arunthathiar) and PH 35 Years G.O. (D) 171, dated 25.07.05
3. Orphans, Destitute Women and Widows 40 years G.O. (D) 171, dated 25.07.05

4. Marks Eligibility:

1. OC, BC, BC (Muslim) and MBC Pass in Higher Secondary 540/1200 G.O. (1D), 111, dated 17.07.03
2. SC, ST, SC(Arunthathiar) and PH Pass in Higher Secondary G.O. (1D), 111, dated 17.07.03

5. LANGUAGES - G.O. (1D), 111, dated 17.07.03

6. Subject wise seat allocation:

1. Science Group 50% seats
2. Arts Group 25% seats
3. Vocational Group 25% seats
(This subject wise selection will be separate for boys and girls)

7. Rule of Reservation:

The seats earmarked for Single Window System will be filled up by following the rule of reservation as follows:

1. Open Competition 31%
2. Backward Class (which includes 3.5% for Backward Class-Muslims) 30%
3. Most Backward Class 20%
4. Scheduled Caste (which includes 16% internal reservation for Arunthathiar) 18%
5. Scheduled Tribes 1%

In the special sections in 17 DIETS for SC/ST students, 90% of seats is earmarked for SC and 10% of seats is earmarked for ST Candidates.
Physically Handicapped (self), Ex-Serviceman (Son/Daughter) and Freedom Fighter (Son/Daughter/Grand Son/Grand Daughter)
Seats Reserved for Special Category Quota:

a) Children of Ex-servicemen (The true copy of certificates issued by the District Ex-servicemen Welfare Officer should be enclosed) 132 seats Code – E
b) Physically Handicapped persons (The true copy of certificate issued by the District Medical Board should be enclosed). (Totally blind and Totally deaf and dumb candidates are not eligible) 3% of Total No. of seats Code – P
c) Sons/Daughters/Grandson/Grand-daughter of Freedom Fighters (The true copy of Heir Certificate issued by the Thasildhar indicating relationship between the candidate and the Freedom Fighter and a certificate of Freedom Fighter issued by the Central/State Government should be enclosed) 28 seats Code – F