BharatNotes There is no reliable correlation between Mains scores and interview scores — the interview is an independent assessment, and a 30-50 mark swing in interview marks can shift a candidate's rank by 100-300 positions.
The relationship between written Mains performance and Personality Test marks has been studied using UPSC result data, and the findings are counterintuitive.
The structural picture The Personality Test carries 275 marks out of the total 2,025 marks (1,750 Mains written + 275 Interview). The interview therefore constitutes approximately 13.6% of the total, but its impact on rank is disproportionate because most serious candidates cluster in a narrow Mains score band.
Verified topper data:
- Shubham Kumar (AIR 1, CSE 2020): 878 (Mains) + 176 (Interview) = 1054 total. He scored the lowest interview marks among the top 10 rankers in 2020, yet topped overall on the strength of his written score.
- Aditya Srivastava (AIR 1, CSE 2023): 899 (Mains) + 200 (Interview) = 1099 total.
- Shakti Dubey (AIR 1, CSE 2024): 843 (Mains) + 200 (Interview) = 1043 total.
- Anuj Agnihotri (AIR 1, CSE 2025): 867 (Mains) + 204 (Interview) = 1071 total — the highest AIR 1 total in eight years.
- Zainab Sayeed scored the highest recorded interview mark in CSE 2024: 220 out of 275.
Average interview score range The median interview score across all recommended candidates is approximately 150-165 (55-60% of 275). Scores above 180 are common in the top 50 ranks.
Practical implication A gap of 30-50 marks in the interview routinely shifts a candidate's rank by 100-300 positions. A candidate with average Mains marks who performs outstandingly in the interview can jump significantly, while a Mains topper who performs poorly in the interview can slip considerably. The two components are effectively independent.
