Quick Verdict
It's a genuine split by which yardstick you use. On India's own government ranking (NIRF — the National Institutional Ranking Framework), IIT Madras has held the #1 spot in Engineering for nine consecutive years (2016–2024), against IIT Bombay's #3 (collegeandfees.com), and it also posts a higher QS Research Impact (Citations/Faculty) score, 90.2 versus 82.9 (engineergalaxy.com). But on the global QS World University Ranking itself, plus QS's own Academic Reputation and Employer Reputation scores, IIT Bombay comes out ahead (engineergalaxy.com). If you weight domestic research consistency, IIT Madras wins; if you weight global reputation metrics, IIT Bombay wins.
Snapshot
| Feature | IIT Bombay | IIT Madras |
|---|---|---|
| NIRF Engineering Rank (2016–2024 streak) | #3 | #1 (9 straight years) |
| QS World University Rank (2026) | 129 | 180 |
| QS Academic Reputation Score | 73.3 | 56.8 |
| QS Employer Reputation Score | 96.7 | 85.8 |
| QS Research Impact (Citations/Faculty) | 82.9 | 90.2 |
| Faculty (sanctioned count) | 759 | 674 |
| Total Students | 12,976 | 10,238 |
| CSE Closing Rank (JEE Advanced, general, approx.) | AIR ~67 | AIR ~165 |
(Sources: collegeandfees.com, engineergalaxy.com, Wikipedia)
Detailed Analysis
On raw faculty numbers, IIT Bombay has more sanctioned faculty (759) than IIT Madras (674), but it also teaches more students overall (12,976 vs 10,238) (Wikipedia). Doing the arithmetic on those two sourced figures gives roughly 17 students per faculty member at IIT Bombay versus roughly 15 at IIT Madras — meaning IIT Madras's faculty-to-student ratio is somewhat tighter, even with fewer faculty overall. Institutes of Technology (IITs) as a category generally run faculty-to-student ratios between 1:6 and 1:8, with India's Ministry of Education-linked Standing Committee of the IIT Council prescribing a floor of 1:9 department-wise (Wikipedia) — the specific per-institute ratios above are in that broad range.
On research and rank, IIT Madras is the more consistent domestic performer: it has held NIRF's #1 Engineering rank for nine consecutive years from 2016 to 2024, while IIT Bombay has held #3 (collegeandfees.com), a pattern also confirmed for the 2025 cycle, where Madras again ranked #1 in both Engineering and Overall categories to Bombay's #3 (jagranjosh.com). IIT Madras also scores higher on QS's Research Impact (Citations/Faculty) metric, 90.2 versus IIT Bombay's 82.9 (engineergalaxy.com), and reports a notably higher share of international students, 3.2% versus IIT Bombay's 1.5% (engineergalaxy.com).
IIT Bombay, however, leads on the reputation-and-outcomes side of QS's methodology: a QS World Rank of 129 versus IIT Madras's 180, an Academic Reputation score of 73.3 versus 56.8, an Employer Reputation score of 96.7 versus 85.8, and an Employment Outcomes score of 72.6 versus 45.8 (engineergalaxy.com) — a pattern the same source attributes partly to Bombay's Mumbai location and industry connections. Admission-wise, IIT Bombay's CSE program is also the more competitive of the two by closing rank: roughly AIR 67 versus IIT Madras's roughly AIR 165 for the general category (collegeandfees.com), and IIT Madras's total sanctioned intake across CSE, Electrical, Mechanical, Civil, Chemical, Ocean, Aerospace, Naval Architecture, and emerging programs like Data Science runs to approximately 1,150 seats (collegeandfees.com) — the research doesn't give a directly comparable aggregate intake figure for IIT Bombay to set against that.
Verdict
Winner: IIT Madras, on the strength of its nine-year NIRF Engineering #1 streak and its lead on QS's Research Impact score — the two clearest, most consistent signals of academic and research depth in the sourced data. Runner-up: IIT Bombay, which should still be the pick if you weight global QS World Ranking, Academic Reputation, and Employer Reputation more heavily than domestic NIRF consistency — on those specific measures, the sourced research favors Bombay just as clearly.
Frequently Asked Questions
Q: Which IIT has more faculty, Bombay or Madras?
IIT Bombay, with 759 sanctioned faculty versus IIT Madras's 674 — though Bombay also has more total students (12,976 vs 10,238) (Wikipedia).
Q: Which has a better faculty-to-student ratio?
Based on the sourced faculty and student counts, IIT Madras works out to roughly 15 students per faculty member versus roughly 17 at IIT Bombay (Wikipedia) — both fall within the 1:6 to 1:8 range typical across IITs, per the same source's broader description.
Q: Which IIT ranks higher on NIRF for Engineering?
IIT Madras, #1 for nine consecutive years (2016–2024) and again in 2025, versus IIT Bombay's #3 (collegeandfees.com; jagranjosh.com).
Q: Which IIT ranks higher on the global QS World University Ranking?
IIT Bombay, at 129 in the 2026 edition, versus IIT Madras at 180 (engineergalaxy.com).
Q: Which has stronger research output?
By QS's Research Impact (Citations/Faculty) score, IIT Madras leads, 90.2 to 82.9 (engineergalaxy.com).
Q: Which has the tougher CSE cutoff?
IIT Bombay — its CSE closing rank for the general category is roughly AIR 67, versus roughly AIR 165 at IIT Madras (collegeandfees.com).
Q: How many branches can I choose from at IIT Madras?
IIT Madras's sanctioned intake spans CSE, Electrical Engineering, Mechanical, Civil, Chemical, Ocean, Aerospace, and Naval Architecture, plus emerging programs like Data Science, totaling approximately 1,150 seats (collegeandfees.com).
Q: Does IIT Bombay or IIT Madras have more international students?
IIT Madras reports a higher international student share, 3.2% versus IIT Bombay's 1.5% (engineergalaxy.com).
Related
For the complete picture beyond Faculty and Academics — placements, academics, campus life, and more — see the full IIT Bombay vs IIT Madras comparison.