It is mandatory for applicants to register their basic particulars through one - time online registration system on payment of Rs. 150/- (Rupees One hundred and fifty only) towards
registration fee and then they should apply online for this recruitment. [The one-time registration will be valid for five years from the date of registration. Thereafter, the registration should be renewed by paying the prescribed fee. One Time Registration will not be considered as an application for any post.
http://www.tnpsc.gov.in/Notifications/2 ... nalyst.pdf