Updated for 2026 · TNPSC Group 1 marks. Prelims is qualifying; final rank is Mains + Interview. Confirm the current pattern on the TNPSC notification.
- Prelims: 200 Q / 300 marks, 1.5 each, no negative marking.
- Prelims is qualifying only (cutoff ~90 reserved / ~120 others).
- Mains: 3 papers × 250 = 750 counted (+ qualifying Tamil paper).
- Interview: 100.
- Final rank = Mains + Interview = 850.
How the marks work, stage by stage
The most important thing to understand about TNPSC Group 1 is that your Prelims marks do not count toward your rank. Prelims is a filter: score above the cutoff and you advance to Mains, and then your Prelims marks are set aside entirely. This surprises many candidates who assume a high Prelims score gives them a head start — it does not. What decides your selection is your performance in the three counted Mains papers (750) plus the Interview (100), a total of 850 marks.
Prelims — clearing the filter
With 1.5 marks per correct answer and no negative marking, the sensible strategy is to attempt every question — an unanswered question and a wrong answer both score zero, so there is no penalty for a considered guess. The indicative cutoffs (around 90 for SC/ST/MBC/BC/BCM and 120 for others) are set fresh each exam based on vacancies and difficulty, so treat the calculator's pass/fail as a guide, not a guarantee. Aim comfortably above the cutoff to be safe, since a score that merely scrapes the indicative line one year could fall below the actual cutoff in a more competitive year.
Mains and Interview — where rank is won
Because the merit rests on 850 marks, consistency across the three GS papers matters more than a spike in one. The Tamil Eligibility Test (100 marks) must be passed but does not add to your merit, so treat it as a hurdle to clear, not a scoring opportunity. The Interview (100 marks) is a meaningful slice — roughly 12% of the merit — so it is worth preparing for properly rather than treating it as a formality. Enter your expected or actual paper scores above to see your merit total and percentage, and use it to set realistic targets for each paper rather than hoping one strong paper carries you, and to see how many interview marks you would need to reach a given total.
A worked example
Say you answer 110 questions correctly in Prelims. Your marks are 110 × 1.5 = 165 / 300 — comfortably above both indicative cutoffs, so you'd expect to reach Mains. In Mains, suppose you score 150, 145 and 140 in the three GS papers (435 / 750) and 65 in the interview. Your merit total is 435 + 65 = 500 / 850 (about 59%). Whether that selects you depends on the cutoff for your category and the vacancies that year — but this is exactly the number your rank is built from, and the Prelims 165 plays no further part.
Attempt everything in Prelims
It bears repeating because it changes strategy: with no negative marking, every question you leave blank is a guaranteed zero, while a considered guess has a real chance of 1.5 marks. So there is no reason to leave any question unanswered in the Group 1 Prelims. Eliminate what you can, make your best choice on the rest, and mark all 200. Candidates who cautiously skip 20–30 questions routinely finish just below a cutoff they would have cleared by guessing. Time your paper so you reach the last question with time to mark an answer for every one.
Related guides
See the TN government salary calculator (what the job pays), the TN TET marks calculator, and the TNPDS status check.
Frequently asked questions
Do Prelims marks count for rank?
No — Prelims is qualifying only. Rank is Mains + Interview (850).
Is there negative marking in Prelims?
No — so attempt every question.
How many marks is Mains?
750 counted (three papers of 250), plus a qualifying Tamil paper.
How much is the interview?
100 marks, part of the 850 merit.
What is the Prelims cutoff?
Indicatively about 90 for SC/ST/MBC/BC/BCM and 120 for others, but the actual qualifying mark is fixed for each exam based on the vacancies and the difficulty of the paper.
About ComplyKraft. Built by Dinesh Kumar S in Chennai — B.Sc. Mathematics, M.Sc. IT. Plain-language guides to Tamil Nadu government services and schemes.
Disclaimer: Informational guide, updated 2026. This is not official government communication. The exam pattern, marks and cutoffs are set by the TNPSC and can change — confirm on the official TNPSC notification before relying on this.