How many departments are there in TNPSC?

How many departments are there in TNPSC?

Tamilnadu public service commission is a government body working under the state government of Tamilnadu. The department tests, recruitment process, posting , all are done by tnpsc only.

There are totally 40 secretariat departments , whose recruitment are handled by tnpsc. Unless if it is a direct interview based recruitment done by the department ,all the recruitments of these departments are handled by tnpsc.