I will tell you eligibility criteria to apply for Group 4 post announced by Tamil Nadu Public Service Commission (TNPSC) so that you can have idea.

Eligibility
Educational Qualification (Common Qualification for all posts):
A. Candidates should possess the following or its equivalent qualification:
Must possess Minimum General Educational Qualification viz., Must have passed S.S.L.C Public Examination or its equivalent with eligibility for admission to Higher Secondary Courses of Studies (or) to College Courses of studies.

Technical Qualification:

1. For Typist:
Must have passed the Government Technical Examination in Typewriting:-
(i) by Higher / Senior Grade in Tamil and English (or)
(ii) by Higher / Senior Grade in Tamil and Lower/ Junior Grade in English (or)
(iii) by Higher / Senior Grade in English and Lower/ Junior Grade in Tamil.

2. For Steno-Typist, Grade III:
Must have passed the Government Technical Examination both in Typewriting and in Shorthand:-
(i) by Higher / Senior Grade in Tamil and English (or)
(ii) by Higher / Senior Grade in Tamil and Lower/ Junior Grade in English (or)
(iii) by Higher / Senior Grade in English and Lower/ Junior Grade in Tamil.

Computer Qualification (for Typist and Steno-Typist, Grade III):
Candidates should have passed the “Certificate Course in Computer on Office Automation” awarded by the Technical Education Department.

Exam pattern
TNPSC conducts Group 4 Exam in single paper (Objective Type) which is of two types.

1. One type of question paper will contain questions on General Studies (SSC Std) (75 Items) and Aptitude Test (25 Items) and General English (100 Items).

2. The other will contain questions on General Studies (75 items), Aptitude Test (25 items) and General Tamil (100 items).

3. Candidates are given the option to choose either General Tamil or General English for answering the second 100 items apart from answering the first (75+25) 100 items on General Studies and Aptitude Test.

Selection procedure
Selection will be made on the basis of marks obtained in the Written Examination, post/Unit option exercised by the candidates following rule of reservation of appointments.

Preference in Selection:
In respect of post of Field Surveyor other things being equal preference shall be given to the candidates with ITI qualification in survey.

Post available
1 Junior Assistant (Security & Non-Security)
2 Bill Collector
3 Typist
4 Steno-Typist, Grade-III
5 Field Surveyor
6 Draftsman