GATE AR 2023 — Paper analysis

The GATE Architecture & Planning (AR) 2023 paper, conducted on 11 February by IIT Kanpur, featured 81 questions worth 100 marks across General Aptitude (15 marks), a common Part A (55 marks), and an optional Part B (30 marks — either B1 Architecture or B2 Planning). The paper maintained the standard GATE AR structure with a balanced mix of MCQ, MSQ, and NAT questions, testing both conceptual recall and numerical problem-solving. This analysis examines topic weightage, difficulty patterns, and strategic takeaways for aspirants.

Topic Weightage & Difficulty Summary

Topic	Approx. Questions	Difficulty
planning-framework	24	Medium
housing-standards	20	Medium–Hard
transport	10	Medium
geospatial	5	Easy–Medium
economics-governance	4	Medium
development-controls	3	Medium
general-aptitude	10	Easy–Medium

Key Observations

Planning frameworks dominated the paper once again. Questions on URDPFI density norms (Q15), Lowry’s model (Q17), NAPCC missions (Q33), SDGs (Q34), and Garden City population (Q21) collectively formed the backbone of Part A. The URDPFI settlement classification question (Q76) in Part B2 required precise recall of population ranges — a detail that rewards rote memorisation of the URDPFI 2015 tables. The 12th Schedule question (Q43) tested whether candidates could distinguish between obligatory and discretionary functions, a nuance that requires reading the constitutional provisions carefully rather than relying on summaries.

Housing standards and building codes were the second heaviest topic. NBC 2016 minimum widths for residential rooms (Q30), CPWD specifications for marble cleaning (Q50), IS 4954 noise levels (Q52), and the fire staircase pressurization question (Q24) all tested direct recall of statutory standards. The septic tank MSQ (Q37) was particularly well-crafted, requiring candidates to identify that liner installation for seepage is NOT part of septic tank design — a trap for those who confuse septic tanks with soak pits. The brick composition MSQ (Q55) tested understanding of raw material effects, where the key trap was that excess alkalis increase (not decrease) efflorescence.

Architectural history and theory featured heavily in Part B1. Six matching-type questions (Q57–Q62) tested associations between buildings and features, architects and movements, instruments and measurements, and vision terminology. The Erechtheion–Caryatid and Hagia Sophia–Pendentive matches are classic GATE staples, but the pump-component matching (Q59) and geometric-form matching (Q60) added variety. The Art Nouveau MSQ (Q56) was a common trap: the Chrysler Building is Art Deco, not Art Nouveau, and the Eiffel Tower predates the Art Nouveau movement.

Numerical questions in Part A required careful reading. The rainwater harvesting problem (Q44) was a straightforward volume calculation with a loss factor, yielding 200 days. The paint estimation question (Q45) involved understanding spreading rates and two-coat application, producing 10,080 litres — a large number that can make candidates second-guess their calculation. The construction scheduling problem (Q46) required tracking activity dependencies and calendar counting, with the critical path running through Activity B → C. The parking question (Q49) had a subtle trap: “equally distributed” referred to equal parking area, not equal number of cars, leading to 75 cars in the basement instead of the intuitively obvious 100.

Part B1 (Architecture) was calculation-intensive. The steel wire elongation (Q64) tested basic mechanics — stress, strain, and Hooke’s law — but required careful unit conversion between mm and m. The RCC beam bending moment (Q65) was a clean UDL problem where the wall load and beam self-weight were combined before applying wL²/8. The thermal diffusivity MSQ (Q54) tested the formula α = k/(ρc), where candidates needed to recognise that α is directly proportional to conductivity and inversely proportional to both density and specific heat — a triple relationship that trips up many.

Part B2 (Planning) balanced policy knowledge with quantitative reasoning. The transit operation planning sequence (Q68), signalized intersection design sequence (Q69), and travel demand dependencies (Q70) tested standard transport planning processes. The trip generation calculation (Q81) was the most involved B2 question, requiring candidates to extract data from two tables and compute products for four cell combinations before summing. The contour interval question (Q80) was elegantly simple once the gradient formula was applied: 200m × (1/25) = 8m rise across 4 contour intervals = 2m interval.

Q12 was declared MTA (Marks to All) by GATE, meaning all candidates received full marks regardless of their answer. This typically happens when a question is found to be ambiguous or when multiple options can be argued as correct. Candidates should not dwell on MTA questions during preparation.

Trends vs Prior Years

• The proportion of MSQ questions continued to increase, with approximately 22 MSQs across Parts A and B in 2023, up from roughly 15 in earlier years. This trend penalises partial knowledge more severely, as MSQs have no negative marking but award zero for incomplete or incorrect selections.
• Matching-type MCQs remained a staple format, with 10 matching questions across the paper (Q29–Q33, Q57–Q62, Q73–Q74, Q76–Q77). These test precise recall with no partial credit, making them high-risk for guessing.
• NAT answer ranges were tight for most questions (single-value ranges for Q44–Q49, Q80–Q81), suggesting the exam setters provide precise model solutions and expect exact calculations without intermediate rounding.
• Current affairs and recent schemes appeared: ARHC scheme (Q71, launched 2021), EnviStats India 2022 (Q20), and SCATSAT-1 (Q77). Relying solely on older textbooks misses these questions.
• The 73rd vs 74th Constitutional Amendment distinction (Q78) is a recurring trap — the 73rd deals with rural Panchayats, the 74th with urban Municipalities. GATE tests this distinction almost every year.

How to Use This Paper

Treat this paper as a full-length mock test under exam conditions: 3 hours, no breaks, negative marking on MCQs (−1/3 for 1-mark, −2/3 for 2-mark). After attempting, use the solutions file to identify not just what you got wrong but why — was it a conceptual gap, a calculation slip, or a misread question? For each incorrect answer, follow the course link to the relevant lesson for targeted revision.

Focus your next study cycle on the highest-yield areas: planning frameworks and housing standards together account for over 44 questions. Within these, NBC 2016 provisions, government schemes (PMAY, SBM, NAPCC, ARHC), URDPFI population ranges, and architectural history matching are near-guaranteed to appear every year. For numerical preparation, drill rainwater harvesting, paint estimation, construction scheduling, and structural calculations — these are formulaic and highly repeatable.

Start your structured preparation at /courses/gate-ar-preparation/ and use this paper’s analysis to prioritise your weak topics.

Cross-year comparison (2021–2026)

See also the full comparison on previous year papers.