GATE Statistics (ST) Marks vs Score vs Rank 2023–2026 + Calculator

GATE reports three different numbers and they are easy to confuse. Marks are what you scored out of 100. The qualifying mark is the cut-off for your category. The GATE score, out of 1000, is what IISc, the IITs and CCMT actually rank you by, and it depends on how everyone else did. This guide puts all three side by side for the four GATE Statistics papers with official reports. It adds a calculator that turns your mock-test marks into a score and an approximate rank on each year’s field. The headline is simple: ST is a small, hard paper, and every year the same marks have bought a lower score.

GATE 2023–2026 statistical reports; the percentage, conversions and count are our arithmetic.

Two things stand out. The field is small and the paper is hard: the average mark has stayed below 20 out of 100, and more than 80% of those who appear score under 30 (84% in 2026, by our count). Only 31 candidates reached 50 marks in 2026. At the same time the top of the field keeps getting stronger: M̄t, the mean mark of the top candidates, rose from 53.6 in 2023 to 69.1 in 2026. Because the score formula stretches the distance between the qualifying mark and M̄t over 550 points, a stronger top means each mark is worth fewer points.

The official formula is Score = 350 + 550 × (M − Mq) ÷ (M̄t − Mq), capped at 1000. M is your mark, Mq the general qualifying mark and M̄t the mean mark of the top 0.1% or top 10 candidates, whichever is larger. A mark exactly at the general qualifying mark always scores 350, and a mark equal to M̄t scores 900. ST has been a single-session paper every year, so no normalisation applies.

The qualifying mark comes from a second rule. For GEN it is μ + σ (the mean plus one standard deviation of all who appeared), but never below 25, and from GATE 2025 never above 40. OBC-NCL and EWS get 0.9 of the GEN figure and SC, ST and PwD two-thirds. For ST neither limit has mattered much. The floor of 25 applied only in 2023, when μ + σ was 24.23. The cap of 40 has never come close: μ + σ was about 30 in both 2025 and 2026.

Work backwards when you set a target. On the 2026 field a score of 500 needed about 40.9 marks, 600 about 48.0 and 700 about 55.0. On the 2023 field the same scores needed 32.8, 38.0 and 43.2. That is a gap of 8–12 marks for the same score in three years, so aim at the 2026 column.

Read the bands with the size of the field in mind. In 2026 a score of 500 put you at about rank 65, a 400 at about 193, and 300 at about 440, which is already past the 414 who qualified. GATE ST ranks are counted among ST candidates only, so a rank of 100 here is roughly the top 5% of those who appeared.

The statistical reports also print a qualifying score for each category. For ST these match the formula in every year but one. The 2024 report prints 156 for SC/ST/PwD, but 17.7 marks on the 2024 field works out to about 204. The same formula reproduces every other printed ST figure: OBC 306 in 2024, and SC 189, 169 and 205 in 2023, 2025 and 2026. We take 156 as an error; the SC column of the 2024 report is scrambled across several papers, not only ST. The qualifying marks (17.7 in 2024) are consistent everywhere, so quote those.