Probation Period
The initial assessment period after joining, typically 2 years within a continuous 3, on full pay, before your appointment is confirmed.
Probationers draw the full pay of the post, and annual increments accrue normally through the period, so probation is not a reduced-pay phase, a common misreading. The 2-within-3-years construction allows for interruptions: the two years of assessed service must fall inside a continuous three-year window. Confirmation follows satisfactory completion of the period.
Related terms
Annual Increment
The yearly step to the next cell of your pay level, roughly a 3% basic-pay rise, granted on a fixed date subject to satisfactory service.
Cadre
The sanctioned set of posts in a service or department into which you are appointed, determining seniority, transfers and promotion lines.
Basic Pay
The pay-matrix figure before any allowance. DA and HRA are calculated as percentages of it, and deductions come off the resulting gross.
Pay Matrix
The 7th Pay Commission table of pay levels and cells that replaced pay bands and grade pay. Every post maps to a level; annual increments move you cell by cell.
Pay Level
A post's row in the pay matrix, fixing its starting basic pay and progression. Group 4 posts sit around Level 8; Group 1 posts start around Level 22.
Grade Pay
The 6th Pay Commission add-on that indicated a post's seniority. Abolished by the 7th CPC and absorbed into pay-matrix levels; older notifications still mention it.
This definition follows official TNPSC notifications and Tamil Nadu government orders. Sources: TNPSC official notifications. Figures are indicative and may change with each official notification. Data last reviewed: July 2026.
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