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GATE — the Graduate Aptitude Test in Engineering — exam-ready notes. One exam opens two very different doors: postgraduate engineering seats at the IITs, NITs and IISc, and recruitment interviews at a long list of public-sector undertakings. This card maps who conducts it, how the paper is built, who may sit it, and why a GATE score lives for three years.

The Landscape at a Glance

1. The conducting rotation. The Indian Institutes of Technology and the Indian Institute of Science conduct GATE by rotation, under the GATE Committee on behalf of the Ministry of Education — each year one institute administers for all.
2. Two doors, one score. The score serves M-Tech and PhD admissions and, separately, PSU recruitment screening — the same number read two ways.
3. The February window. GATE runs across weekends in February — a computer-based test in multiple sessions, with normalisation across them.
4. The score’s life. A GATE score stays valid for three years — a candidate can bank it for admissions or PSU processes across cycles.
5. No age limit. There is no age bar — eligibility runs on qualification, not birth year.

The Thirty-Paper Structure

1. A paper for every discipline. Around thirty papers cover the engineering branches — computer science, electronics, mechanical, civil, electrical and the rest — plus science streams.
2. Two-paper choice. A candidate may sit a second paper from an allowed combination — a pairing rule the GATE information brochure lists each cycle.
3. The interdisciplinary trio. Engineering Sciences XE, Humanities and Social Sciences XH, and Life Sciences XL serve cross-disciplinary candidates — papers that let non-core backgrounds enter the gate.
4. Paper codes are quiz material. CS, EC, ME, CE, EE — the two-letter codes are exactly the kind of matching item examiners reach for.
5. One applied-for paper is primary. The primary paper choice fixes the syllabus — the prep plan must lock it early.

The Pattern: One Hundred Marks, Three Hours

1. Sixty-five questions, one hundred marks. Every GATE paper carries 65 questions totalling 100 marks over three hours — the arithmetic quiz banks cite verbatim.
2. The compulsory general aptitude block. Fifteen marks of general aptitude — verbal and numerical — appear in every paper; preparation there is fully transferable between papers.
3. Three question types. Multiple-choice questions, multiple-select questions and numerical-answer types — the last two marking schemes differ from classic MCQ.
4. Negative marking, selectively. One-third and two-thirds deductions apply to wrong MCQs — but numerical-answer and multiple-select questions carry no negative marking, a distinction worth precise revision.
5. Virtual calculator only. The exam interface supplies an on-screen calculator — physical calculators stay outside; practice happens on virtual ones.

Eligibility: The Widest Gate in Indian Exams

1. Who may sit. Undergraduate students in the third year or higher of an engineering or science degree, graduates in those fields, and postgraduate degree holders — the eligibility net is deliberately wide.
2. No age limit, no attempt cap. A candidate may appear in as many cycles as desired — the three-year score life plus unlimited attempts shape multi-year strategies.
3. International takers. Candidates from Bangladesh, Ethiopia, Nepal, Sri Lanka, Singapore and the United Arab Emirates also sit GATE under the international registration route — a factoid prelims-style quizzes have used.
4. Documents at application. The registration needs qualification details and a photograph per the brochure’s specification — the process is fully online.

Scores, Normalisation and Percentile Logic

1. Multi-session normalisation. Where sessions differ in difficulty, scores are normalised so no session is systematically easier — the statistical correction GATE publishes methodology for.
2. The scorecard window. Qualified candidates download the scorecard from the application portal in the cycle’s announced window — the document PSUs and admissions actually ask for.
3. The qualifier line. Qualifying marks vary by paper and category — the same score can clear one paper’s bar and miss another’s.
4. Rank versus score. The all-India rank orders candidates within a paper; the score, not the rank, converts across years for admissions.

The PSU Door

1. Why PSUs use GATE. Public-sector undertakings screen entry-level engineering hires by GATE score — the exam doubles as a recruitment shortlist, and many list their GATE-score cutoffs openly.
2. The process after shortlist. Group discussion or group task and a personal interview follow the score screen — the final merit typically weighs test score and interview together.
3. Discipline mapping. PSU vacancies name eligible GATE papers — mechanical posts read the ME paper, electrical the EE — the pairing determines which paper to prepare.
4. The dual-track advantage. Preparing for the M-Tech door automatically prepares the PSU door — one syllabus, two career tracks.

How Exams Ask This Card

1. Conductor question. GATE is conducted by the IITs and IISc in rotation — a direct, often-repeated item.
2. Structure numbers. 65 questions, 100 marks, 3 hours — the numeric triplet quiz banks use directly.
3. Negative-marking question. Negative marking on MCQs but not on numerical-answer types — the discrimination item.
4. Validity question. Three years — a number every serious candidate and every quiz bank knows by heart.
5. PSU linkage. PSUs using GATE scores for recruitment — a standard current-affairs-adjacent quiz line.

Quick Revision: Ten Lines

1. GATE — Graduate Aptitude Test in Engineering; conducted by IITs and IISc in rotation.
2. Held in February; computer-based; multiple sessions with normalisation.
3. Around thirty papers, one primary plus an allowed second paper.
4. Interdisciplinary papers — Engineering Sciences XE, Humanities and Social Sciences XH, Life Sciences XL.
5. Pattern — 65 questions, 100 marks, 3 hours.
6. General aptitude — 15 marks compulsory in every paper.
7. Negative marking — one-third and two-thirds on MCQs; none on numerical-answer and multiple-select types.
8. Eligibility — third-year undergraduates and above; no age limit; unlimited attempts.
9. Score validity — three years.
10. Two doors — M-Tech and PhD admissions, and PSU recruitment screening.

Conclusion: One Score, Three Years, Two Careers

GATE rewards the patient candidate twice over: the score that clears an M-Tech interview at an IIT also sits on a PSU shortlist, and it stays live for three years while decisions are made. Choose the primary paper early, drill the general-aptitude block that transfers across every paper, and respect the marking scheme — the numerical-answer questions that carry no negative are the free marks most strategies underuse. Whichever door the score opens, it leads into India’s engineering establishment — the institutes and industries the rest of this site’s science and current-affairs cards keep tabs on.

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