Tamilnadu Public Service commission (TNPSC) Group 1 age of the candidate should be between 21 years to 31 years while age limit to depends on post also.

TNPSC) Group 1 Age Criteria:

For all the posts except the post of Assistant Commissioner (C.T).
Minimum Age limit:21 Years
Upper Age limit: 30 Years

Assistant Commissioner (C.T.)
(i) For candidates possessing any degree
Minimum Age limit:21 Years
Upper Age limit: 30 Years

For candidates possessing B.L. degree of any University or Institution recognized by the University Grants Commission.
Minimum Age limit: 21 Years
Upper Age limit: 31 Years

Selection procedure:

Preliminary Examination
Main Written Examination
Interview

Preliminary Examination pattern:

Single paper in General Studies-200 items
Degree Standard – Objective Type
General Studies – 150 items
Aptitude & Mental Ability
Test (SSLC Standard) 50 items

Duration: 3 Hours
Maximum Marks: 300

Main Written Examination pattern:

General Studies- Descriptive type –
Degree Standard
Paper-I: 3 Hours 300 marks
Paper- II: 3 Hours 300 marks

Total 1020