IIT Madras BS Data Science PYQs, subject by subject — all 5,376 solved.

Which IIT Madras BS Data Science subject should you practise first?

Practise the subject whose weakest topic is costing you the most marks, and Prasnya is organised so that this is a decision you can make from evidence rather than memory. Prasnya holds 5,376 IIT Madras BS Data Science previous year questions — IITM BS PYQs — transcribed from the 45 officially released papers spanning 2022 - 2026, split across all 8 foundation subjects: Mathematics 1 (30 topics), Mathematics 2 (44), English 1 (35), English 2 (48), Statistics 1 (43), Statistics 2 (38), Computational Thinking (30), Programming in Python (24). Every subject breaks down into weeks, topics and subtopics — 568 topics and 1195 subtopics in all — and each of those is its own practice route with worked solutions, and its own timed mock. Every one of the 8 is examined in the cumulative End Term; 7 also appear in Quiz 2, with Programming in Python examined in the Qualifier / Quiz 1 and End Term sets. Prasnya is free to practise at week level and is independent, not affiliated with IIT Madras.

The index

All 8 subjects, and what is inside each

Topic and subtopic counts are measured against the published catalog, not estimated. Each subject opens on its own question list; where a subject is examined in both paper sets, both routes are listed.

• IITM-DS/MATHEMATICS-1

  Mathematics 1

  Examined in Qualifier · Quiz 1 · Quiz 2

  Topics

  30

  Subtopics

  73

  Qualifier / Quiz 1 questionsQuiz 2 questions

• IITM-DS/MATHEMATICS-2

  Mathematics 2

  Examined in Qualifier · Quiz 1 · Quiz 2

  Topics

  44

  Subtopics

  99

  Qualifier / Quiz 1 questionsQuiz 2 questions

• IITM-DS/ENGLISH-1

  English 1

  Examined in Qualifier · Quiz 1 · Quiz 2

  Topics

  35

  Subtopics

  88

  Qualifier / Quiz 1 questionsQuiz 2 questions

• IITM-DS/ENGLISH-2

  English 2

  Examined in Qualifier · Quiz 1 · Quiz 2

  Topics

  48

  Subtopics

  94

  Qualifier / Quiz 1 questionsQuiz 2 questions

• IITM-DS/STATISTICS-1

  Statistics 1

  Examined in Qualifier · Quiz 1 · Quiz 2

  Topics

  43

  Subtopics

  92

  Qualifier / Quiz 1 questionsQuiz 2 questions

• IITM-DS/STATISTICS-2

  Statistics 2

  Examined in Qualifier · Quiz 1 · Quiz 2

  Topics

  38

  Subtopics

  77

  Qualifier / Quiz 1 questionsQuiz 2 questions

• IITM-DS/COMPUTATIONAL-THINKING

  Computational Thinking

  Examined in Qualifier · Quiz 1 · Quiz 2

  Topics

  30

  Subtopics

  63

  Qualifier / Quiz 1 questionsQuiz 2 questions

• IITM-DS/PROGRAMMING-IN-PYTHON

  Programming in Python

  Examined in Qualifier · Quiz 1

  Topics

  24

  Subtopics

  47

  Qualifier / Quiz 1 questions

Below a subject

Four levels under every subject, each one a route

Opening a subject is the start of the walk, not the end of it. Each level below can be practised on its own, and each can be taken as a timed mock rather than met four questions at a time inside a paper.

1. Subject8Every foundation subject in the programme
2. Week1 - 12Exactly as the course runs them, so practice follows the lecture
3. Topic568The level a mock report names when it says what cost you marks
4. Subtopic1195The smallest addressable thing — one idea, practisable alone

The plans

Three plans, priced for students

One payment for one month of access.

• Go

  Rs 67/month

  Subject and week wise previous year questions, filters, bookmarks and the practice surface.

• Plus

  Rs 129/month

  Adds qualifier, previous-year, subject-wise, section and week mocks with basic analysis.

• Pro

  Rs 149/month

  Adds topic and subtopic mocks, unlimited starts, advanced analysis and question-by-question solution review.

The questions

Questions students ask

Which subjects do IIT Madras BS Data Science PYQs cover on Prasnya?

All 8 foundation subjects: Mathematics 1, Mathematics 2, English 1, English 2, Statistics 1, Statistics 2, Computational Thinking, Programming in Python. Every one of the 8 is examined in the cumulative End Term; 7 also appear in Quiz 2, with Programming in Python examined in the Qualifier / Quiz 1 and End Term sets.

How many topics does each subject break into?

Between 24 and 48, depending on the subject — English 2 is the largest at 48 topics and Programming in Python the smallest at 24. Each topic breaks down further into subtopics, and every level is its own practice route and its own timed mock.

Can I practise one subject on its own?

Yes. A subject is a route of its own, and so is each week, topic and subtopic inside it. You can also take any of those levels as a timed mock rather than only sitting a whole paper.

Is Prasnya an official IIT Madras website?

No. Prasnya is an independent practice platform and is not affiliated with IIT Madras or any examination body. It exists to make officially released previous year questions practisable in a structured way.

Which IITM BS assessments are covered?

All four: Qualifier, Quiz 1, Quiz 2 and End Term — 45 papers spanning 2022 - 2026. The End Term set alone is 2,348 questions from 21 papers, and because that exam is cumulative it is the only one covering all 12 weeks of every subject.

Which subjects are included?

All 8 foundation subjects: Mathematics 1, Mathematics 2, English 1, English 2, Statistics 1, Statistics 2, Computational Thinking, Programming in Python.

Can I take previous year papers as a timed mock test?

Yes. A full paper, a single subject, a single week, a single topic or a single subtopic can each be started as a timed mock. Plus includes one start of each mock kind; Pro removes the caps and adds advanced analysis.

What does it cost, and is there a free trial?

Plans are Rs 67, Rs 129 and Rs 149 — one payment for one month of access. Every new account gets 1 day of full Pro-level access first, with no card required.

Does it work on a phone?

Yes. The practice surface, the timed mocks and the analysis are all built mobile-first, with the mathematics typeset rather than served as images, so it stays legible on a small screen.