What is the difference between TNPSC group 2 and group 2A?

What is the difference between TNPSC group 2 and group 2A?

Group 2 examination is considerably a important exam being conducted by the board of TNPSC. It recruits the most important posts in various positions and departments.

There is a confusion for the candidates between the exams of group 2 and group 2A exams. Let us make it clear now,

Group 2 exam is a interview post exam, where the selection process goes like preliminary exam, main examination followed by interview.

Group 2A is a non interview post exam, in which selection process is without a interview.