TNPSC · Group 1

TNPSC Group 1 interview: marks, format and how to prepare

By the PrepMatic team · Updated 8 Oct 2026 · 7 min read

The TNPSC Group 1 interview carries 100 marks, has no minimum qualifying mark, and is added to your three mains General Studies papers to give a final score out of 850. You are called for it based on your mains marks, in a ratio set by your reservation group. TNPSC says its purpose is to assess your suitability for the service by judging personality, bearing, aptitude, general knowledge, technical knowledge and similar qualities. This guide covers the facts in the Group 1 Notification 04/2025 and a practical way to prepare for each part of it.

Interview facts from the notification

The notification does not describe the board, the duration, or the questions asked. Treat any website claiming to know them with caution.

How many candidates are called

The number depends on how many vacancies each reservation group has:

So a group with 8 vacancies calls 16 candidates, and a group with 3 vacancies calls 9. These are small numbers. Reaching the interview already puts you in a short list, and then each mark counts. See the Group 1 exam pattern for the earlier stages.

TNPSC says it will publish the dates for certificate upload, physical certificate verification, interview and counselling on tnpsc.gov.in, and that candidates will be told only by SMS and e-mail to the registered mobile number and e-mail ID, not by post. It takes no responsibility if a message misses you because of a wrong or inactive number or ID. Keep both active from the day you register.

What the board is judging

The notification lists five qualities. Here is what each means in the room and how to prepare it.

Topics to prepare

These are categories derived from the stated criteria, not a list of past questions.

• You. Everything you declared in your application: education, hometown, work or study background, hobbies, and why you want the civil service. Assume anything there can be asked about.
• Your degree subject. The basics, plus one or two ways it applies to administration.
• Your district and Tamil Nadu. Geography, history, crops and industries, heritage sites, well-known personalities, local problems and state schemes. Your own district is the topic you are most expected to know, so build a file on it. Use Tamil Nadu history, culture and heritage for the background.
• The posts. What a Deputy Collector, Deputy Superintendent of Police, Assistant Commissioner (Commercial Taxes), Assistant Director of Rural Development, District Employment Officer or Assistant Commissioner of Labour does, and why you would choose yours.
• Current issues. Five or six live issues, each with the facts, both sides and your measured view.
• Administration in practice. Floods, communal tension, a corruption complaint, a delayed public service: how you would act.

The Group 1 syllabus is also fair territory, especially polity, economy and Tamil Nadu society, because you have already studied it for the mains.

How to answer

A practice scenario, not a TNPSC question: heavy rain is forecast for your sub-division and a hostel stands on low ground. What do you do? A strong answer in about a minute: "My first priority is safety, so I would move the residents to a safe shelter. I would confirm the forecast and ground conditions with the tahsildar and revenue staff. Under the district disaster management plan I would coordinate police, fire and rescue, health and electricity. At the relief centre I would arrange food, water and a medical team, keep parents informed, and record decisions for a review after the water recedes."

Notice the pattern: priority, facts, coordination, care, accountability. It works for most situations. Keep most answers to 30 to 60 seconds, then stop and let the board follow up.

Language, dress and conduct

Practise in the language you plan to use, and for Tamil, build administrative vocabulary (collector, tahsildar, relief, grievance, welfare scheme). The call letter will carry the exact instructions on language and documents, so read it twice. The notification sets no dress code. Dress formally and simply, arrive early, carry the originals the call letter lists, greet the board, wait to be seated, listen to the full question and thank the board when you leave.

A preparation timeline

Mock interviews that help

Ask three people, for example a teacher, a working officer and a friend, to play the board for 20 minutes each. Have each score you from 1 to 5 on personality, bearing, aptitude, general knowledge and technical knowledge, and write one line of feedback. Record one session on your phone and watch it with the sound on for filler words and on mute for posture. Repeat three or four times, changing the panel each time. For a wider plan, see the Group 1 preparation strategy.

Why the 100 marks matter

There is no minimum mark, so you cannot fail on interview marks alone. But the total decides your rank. Here is a hypothetical case, not real figures. Candidate A scores 410 in the mains and 50 in the interview, a total of 460. Candidate B scores 395 and 70, a total of 465. B ranks above A despite a 15-mark mains deficit. The structure habits from Group 1 mains answer writing carry over, because a structured, balanced answer works orally too.

The medical examination

The medical examination comes after the interview, and your eligibility for the post is decided on the Medical Board's report. No supplementary interview list replaces candidates who fail the medical or physical standards. Standards differ by post, and Deputy Superintendent of Police has height and chest requirements, so read the post-wise rules on the Group 1 exam pattern page and in the notification well before the interview.

PrepMatic's prelims practice and study planning help you reach this stage, but it has no interview practice.

Frequently asked questions

How many marks is the TNPSC Group 1 interview?

The interview carries 100 marks. Together with the three General Studies mains papers (750 marks), it makes the 850 on which your final rank is decided.

Can I be rejected for a low interview score?

TNPSC sets no minimum qualifying marks for the interview, so a low score does not disqualify you by itself. It lowers your total and therefore your rank. Documents, eligibility and the medical examination still apply.

Who is called for the Group 1 interview?

Candidates are shortlisted by mains marks within each reservation group. If a group has five or more vacancies, twice that number are called. If it has four or fewer, three times that number are called.

Does TNPSC publish the Group 1 interview board or questions?

The notification does not describe the board, the duration or the questions. Online lists of "actual questions" are unofficial, so use them only as practice, not as a prediction.

How will I know the Group 1 interview date?

TNPSC publishes dates on tnpsc.gov.in and informs candidates by SMS and e-mail on the registered mobile number and e-mail ID. It does not write individually by post, so keep both details active.

Official sources

• Group 1 Notification 04/2025 (para 5: plan of examination, interview and medical standards)
• TNPSC official website

Interview ratios, marks and conditions are set in each notification, so check the latest Group 1 notification before you rely on them. For the whole exam, see the TNPSC guide.

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