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TNOU B.Sc 2026: Eligibility, Fee, Duration and Syllabus

Updated 2 October 2026 Programmes 4 min read

Tamil Nadu Open University (TNOU) offers various B.Sc. programmes, including Physics, Botany, Zoology, Mathematics, Computer Applications, Chemistry, Geography, Apparel and Fashion Design, and Psychology. The programmes are 3 years (6 semesters) in duration. For the Academic Year 2026-27, the last date for online admission is 13 October 2026.

Key facts

Programme Type Bachelor of Science (B.Sc.)
Duration 3 years (6 semesters)
Eligibility Higher Secondary Examination (10+2 pattern) or equivalent
Admission Mode Online
Last Date for Admission (AY 2026-27) 13 October 2026
Mode of Study Open and Distance Learning (ODL)
Official TNOU page on tnouportal.in: TNOU Online Admission Home page
The official TNOU page on tnouportal.in — TNOU Online Admission Home page. Screenshot taken 2 October 2026; click to open it.

B.Sc. Programmes Offered by TNOU

Tamil Nadu Open University (TNOU) offers several Bachelor of Science (B.Sc.) programmes through its various Schools.

  • School of Science: B.Sc. Mathematics, B.Sc. Mathematics with Computer Applications, B.Sc. Physics, B.Sc. Chemistry, B.Sc. Botany, B.Sc. Zoology, B.Sc. Geography, B.Sc. Apparel and Fashion Design.
  • School of Social Sciences: B.Sc. Psychology.
  • School of Computer Science: B.Sc. Computer Science.

Eligibility Criteria for B.Sc. Programmes

Candidates must have passed the Higher Secondary Examination (10+2 pattern) or any other examination (10+3 pattern) accepted by the Syndicate as equivalent.

Programme Duration

The B.Sc. programmes are structured as a 3-year, 6-semester course under the Open and Distance Learning (ODL) system.

Admission Process and Key Dates for AY 2026-27

Admissions for the Academic Year 2026-27 are currently open. The last date for online admission for AY 2026-27 has been extended up to 13 October 2026.

Students can apply online for fresh applications or manage existing registrations (document upload, fee payment) through the TNOU e-portal.

  1. Visit the TNOU Online Admission Home page.
  2. For a fresh application, click the link for “fresh application registration”.
  3. For already registered students, click the link for “document upload or fee payment services”.
TNOU: Admission Process and Key Dates for AY 2026-27 — step-by-step
Admission Process and Key Dates for AY 2026-27: the steps at a glance.

Fee Structure

TNOU has not published the fee structure for B.Sc. programmes on its website as of 02 October 2026.

B.Sc. Syllabus Overview

The Curriculum Development Cell (CDC) at TNOU is responsible for planning, developing, and periodically revising the curricula and syllabi for all programmes, including UG courses, in line with UGC Regulations and TANSCHE guidelines.

Syllabi for specific B.Sc. programmes are available for download.

  • B.Sc. Physics Semester Syllabus
  • B.Sc. Botany Syllabus (Effective from AY 2020-21)
  • B.Sc. Zoology Syllabus (Effective from AY 2022-23)
  • B.Sc. Geography Semester Syllabus
  • B.Sc. Computer Science (Semester) Regulation with Syllabus (listed by School of Computer Science)
  • B.Sc. Mathematics, B.Sc. Mathematics with Computer Applications, B.Sc. Chemistry, B.Sc. Apparel and Fashion Design (listed by School of Science)

Examination and Passing Standards

  • Theory Examinations: Maximum Marks: 100 (30 for Continuous Internal Assessment + 70 for Term End Examinations). Passing Minimum: Not less than 25 marks in Term End Examinations (TEE) and not less than 13 marks in Continuous Internal Assessment (CIA). The overall aggregated marks must be 40.
  • Practical Examinations: Passing Minimum: Not less than 40 marks in the University practical examination.
  • Classification of Successful Candidates: First Class: 60 percent and above in the aggregate. Second Class: 50 percent and above but below 60 percent in the aggregate.
What you can do Official page
TNOU Online Admission Home page tnouportal.in/OnlineadmissionHomeAY2026.aspx
View School of Science programmes tnou.ac.in/SchoolScience.php
View School of Social Sciences programmes tnou.ac.in/SchoolSocial.php
View School of Computer Science programmes tnou.ac.in/SchoolComputer.php
Learn about Curriculum Development Cell tnou.ac.in/Cell-CDC.php

Official documents (PDF)

  • B.Sc PDF — B.Sc. Physics Semester Syllabus
  • B.Sc PDF — B.Sc. Botany Syllabus
  • B.Sc PDF — B.Sc. Zoology Syllabus
  • B.Sc PDF — B.Sc. Geography Semester Syllabus

Frequently asked questions

What B.Sc. programmes does TNOU offer?

TNOU offers B.Sc. in Mathematics, Mathematics with Computer Applications, Physics, Chemistry, Botany, Zoology, Geography, Apparel and Fashion Design, Psychology, and Computer Science.

What is the duration of the B.Sc. programmes?

All B.Sc. programmes are 3 years in duration, structured into 6 semesters.

What is the last date to apply for B.Sc. admission for AY 2026-27?

The last date for online admission for the Academic Year 2026-27 is 13 October 2026.

Where can I find the fee structure for B.Sc. programmes?

TNOU has not published the fee structure for B.Sc. programmes on its website as of 02 October 2026.

What are the passing marks for B.Sc. theory exams?

For theory papers, you need at least 25 marks in the Term End Examination (TEE) and 13 marks in Continuous Internal Assessment (CIA), with an overall aggregate of 40 marks.

Sources

Written from the official TNOU pages and documents below, as read on 2 October 2026.