Unknown IITians started on YouTube in September 2024 with one aim: to make IITM BS study material free and clear. The channel now has over 300 videos, more than 15 lakh views till date and over 9,800 subscribers, and over 1 lakh students have learned from Unknown IITians.
Every playlist below is free to watch. Each subject series follows the course week by week, with previous year questions and the most important questions alongside the concepts.
Watch these free playlists, including English-medium series for Mathematics 1, Statistics 1 and Computational Thinking.
Free courses for two Diploma subjects.
Start here if you are preparing for the Qualifier.
Short, exam-focused series to revise the night before: Quiz 1, Quiz 2, End Semester, the Qualifier and the Python OPPE.
Every subject also has a page on this website with free week-wise notes, previous year papers and grade calculators, and Quiz Space lets you practise those papers online with answer keys. If you want live lectures and doubt-solving on a schedule, see the live batches.
Unknown IITians is always looking for educators who can teach IITM BS subjects clearly. See how to apply on the educators page.
Yes. All the lecture playlists are free to watch on YouTube.
Foundation: Mathematics 1 and 2, Statistics 1 and 2, Computational Thinking and Programming in Python. Diploma: Database Management Systems, and Programming, Data Structures and Algorithms using Python. There are also Qualifier preparation and Fastrack revision series.
Yes. There are Fastrack revision series for Foundation Quiz 1, Quiz 2 and End Semester, a one-shot Qualifier revision, and a Python OPPE-focused series.
Over 1 lakh students have learned from Unknown IITians through the YouTube channel, this website and Quiz Space.
Yes. There are English-medium series for Mathematics 1, Statistics 1 and Computational Thinking.
Unknown IITians is an independent study-resources site and is not affiliated with or endorsed by IIT Madras. Please check official sources for admissions, fees, dates and grading rules, and check any calculator's result against your course's official grading document.