How to prepare for INDIAN STATISTCAL SERVICE(ISS) interview in Delhi?
- Sunrise Classes
- 4 days ago
- 2 min read
Updated: 2 days ago
How to prepare for INDIAN STATISTCAL SERVICE(ISS) interview in Delhi?

Sunrise Classes is highly regarded for its interview preparation, primarily because they treat the Viva-Voce (200 marks) as a distinct technical and psychological challenge rather than just a formal conversation.
Here is how you can utilize their program to maximize your interview score:
1. The Interview Guidance Program (Features)
Sunrise Classes typically launches a Free Mock Interview Program for all candidates who qualify for the UPSC ISS written exam.
Simulated UPSC Panels: They curate panels consisting of retired ISS officers, professors, and subject matter experts to replicate the high-pressure environment of the Dholpur House (UPSC) interview.
One-on-One Feedback: After each mock, you receive a detailed breakdown of your performance, covering body language, voice modulation, and the technical accuracy of your answers.
DAF Analysis: The team helps you dissect your Detailed Application Form (DAF). They identify potential "hotspots"—questions about your hometown, hobbies, or previous work experience—that the UPSC panel is likely to target.
2. Strategic Preparation Steps with Sunrise
Watch Topper Mocks: Sunrise Classes has a vast library of recorded mock interviews with past rankers (including AIR 1 and AIR 2). Watching these on their YouTube channel (ISS Coaching Delhi - Sunrise Classes) helps you understand the expected "depth" of technical answers.
Focus on Applied Statistics: The interview often pivots from theory to application. Use their guidance to prepare for questions on:
National Sample Survey (NSS) findings.
Economic Survey and Census methodology.
How Statistics can solve real-world problems (e.g., using AI/ML in governance).
Personality Development: They conduct sessions specifically on "composure" and "presence," helping you learn how to say "I don't know" gracefully—a crucial skill for the UPSC interview.
3. The Interview "Team"
The guidance is led by S.K. Choudhary, who is known for his sharp technical insights. The "Interview Team" usually includes:
Subject Experts: To grill you on Paper III and IV concepts (Econometrics, Sampling, etc.).
Psychologists/HR Experts: To monitor your stress levels and non-verbal cues.
Guest ISS Officers: To provide a perspective on what the service actually expects from a prospective officer.
How to Join
If you have cleared the written exam or are preparing for the next cycle:
Register Early: Their mock slots are limited and fill up quickly once written results are out.
Submit your DAF: Send them a copy of your DAF for a personalized question list.
Contact: You can reach them at +91 8227056819 or visit their Laxmi Nagar center.
How to prepare for iss interview?

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