Homi Bhabha Balvaidnyanik Spardha Class 6

The Homi Bhabha exam for Class 6, officially the Dr. Homi Bhabha Balvaidnyanik Competition (also written as Homi Bhabha Balvaidnyanik Spardha or HBBVS), is a four-stage science talent search conducted by the Greater Bombay Science Teachers' Association (GBSTA). The association has run it since 1981 for students of Std 6 and Std 9. Instead of testing memory alone, it checks how well a young student understands science, observes carefully, handles simple apparatus and explains ideas.

This page covers the 2026-27 cycle for Class 6 students: important dates, eligibility, fees, the four stages, how marks are counted for selection, the syllabus weightage, medals and a stage-wise preparation plan. Registration for 2026-27 closed in August 2026, and the Level I written test is on 28 November 2026. All dates and fees below are taken from GBSTA's official 2026-27 information.

HBBVS Class 6 2026-27

Homi Bhabha Exam Class 6 Important Dates 2026-27

GBSTA released the 2026-27 schedule in its official information circular. The table lists the events that apply to Class 6 students.

GBSTA reserves the right to change the schedule and the mode of any stage. Check the official Homi Bhabha exams page on msta.in and your school's exam in-charge for updates before each round.

Who Can Take the Homi Bhabha Exam in Class 6?

Eligibility is simple, but a few rules catch families off guard every year.

• Class: Only students currently studying in Std 6 can take the junior competition. Std 9 students take the senior competition.

• Board: Students from every board can apply, including Maharashtra State Board, CBSE, ICSE, IB and other state boards.

• Medium: The competition runs in English and Marathi. Semi-English students can choose either. The medium chosen at registration stays the same for all four stages and cannot be changed later.

• Mode of registration: Students register online through their school or individually. Registration through private classes or academies is not allowed.

• No spot entries: On-the-spot entries are not accepted at any centre, and absent candidates cannot be replaced.

Regions and Exam Centres

Results and selections are worked out region-wise, so it helps to know which region your district falls under.

For the "other than Maharashtra" region, a school that registers at least 50 students gets the exam centre in its own premises. Otherwise, the centre is in Maharashtra, chosen from three preferences given at registration.

Registration Fee and How to Apply

Registration for 2026-27 is closed. The steps below show how the process works so that you can plan for the next cycle, which usually opens in July.

The fee includes a copy of GBSTA's authentic book, delivered to the school or to the student's registered address. Fees are non-refundable. Some older pages still show a fee of Rs. 320 or Rs. 500, which is the earlier structure, so follow the revised fees above.

Registering Through School

1. Log in: The school logs in on the GBSTA registration portal with its existing ID, or creates a new school registration.

2. Choose centres: The school selects three preferred centres and confirms its profile.

3. Pay fees: The school enters the number of students and pays online.

4. Add students: About half an hour after payment, the school adds each student with name, gender, class, medium, date of birth, WhatsApp number, email and a passport-size photo (up to 2 MB).

Registering Individually

Students who cannot register through school can use "New Individual Registration" on the same portal. You verify a mobile number with an OTP, fill in the student's details, and upload a passport-size photo and a school bonafide certificate. The registration stays incomplete until both files are uploaded. The same mobile login is later used to view results.

Homi Bhabha Exam Class 6 Pattern: The Four Stages

The competition moves students through four stages. Only the top performers at each stage move ahead.

What this means for you:

• Each MCQ carries one mark: With 100 questions in 90 minutes, you get a little under a minute per question, so reading speed matters as much as knowledge.

• The practical is fast: Six minutes per experiment leaves no time to think about what the apparatus is for. Hands-on practice before January makes a real difference.

• Later stages reward clear thinking: The interviews and project carry 60 marks together, so explaining what you did and why counts heavily for the medal.

Selection Process and How Marks Are Counted

Your written test score does not disappear after Phase I. A part of it is carried forward to every later decision.

1. Phase I to Phase II: The top 7.5% of students in each region are selected for the practical, ranked separately for Marathi medium, English medium (Maharashtra State Board) and English medium (all other boards). Selected students get a merit certificate. Other students who pass get a passing certificate.

2. Phase II to Phases III and IV: GBSTA adds 30% of your Phase I marks to your practical marks. The top 10% on this combined score go to the interviews.

3. Medal decision: The final score is 30% of Phase I marks plus your marks in Phases II, III and IV.

Worked Example

Suppose a Class 6 student scores 80 out of 100 in the written test. Thirty percent of 80 is 24. If the student then scores 24 out of 30 in the practical, the score for interview selection is 24 + 24 = 48 out of 60. If the student goes on to score 22 in the general interview and 21 in the project round, the final medal score is 24 + 24 + 22 + 21 = 91 out of 120.

The example shows two things. First, the written test still counts for a quarter of the final score. Second, the practical, interview and project together decide most of the medal colour, so preparation should not stop after November.

Homi Bhabha Exam Class 6 Syllabus

GBSTA defines the syllabus by textbook and weightage rather than as a chapter list. Most questions come from Maharashtra State Board science textbooks, along with related content from CBSE, ICSE and IB books. The association has said it gives less weight to plain recall and more to understanding, reasoning, correlation and application.

Maharashtra introduced new textbooks for Std 4 and Std 6 in the 2026-27 session, and GBSTA has not specified which edition this year's paper follows. The Homi Bhabha exam Class 6 syllabus page breaks the content down topic by topic and explains how to cover both editions.

Medals, Scholarships and Certificates

Every student who reaches the interview stage receives a medal. The colour depends on the final merit score.

Students who qualify for Phase II receive a merit certificate, and other passed students receive a passing certificate. Schools also compete for two trophies in each region: the Dr. Vikram Sarabhai Trophy for the school winning the most medals, and the Vidnyan Jattha Trophy for the highest participation.

Results and Rechecking

The Level I result is due on 20 December 2026 and the practical result on 15 February 2027. Schools see results through their login, and individually registered students log in with their registered mobile number and OTP. GBSTA does not allow rechecking at any stage, so treat each round as final.

How to Prepare for the Homi Bhabha Exam Class 6

Plan for all four stages, but put most of your effort into Phase I in the weeks before the November written test. The practical and interview rounds come later, so you can shift focus to them once the written test is over.

For the Written Test (Phase I)

• Start with Std 6: It carries about 60% of the paper. Read each chapter for the reason behind every fact, not just the fact.

• Revise Std 4 and Std 5: Together they carry about 30%. Short, regular revision works better than one long session.

• Build general science awareness: Read about scientists, inventions, space missions and science in daily life for 15 minutes a day.

• Practise timed papers: Solve previous papers and full 100-question tests in 90 minutes to build speed and accuracy.

For the Practical Test (Phase II)

• Learn by doing: Practise measuring lengths with a ruler and thread, timing a pendulum, testing magnets and observing seeds, leaves, flowers and stems.

• Draw and label: Get comfortable drawing neat diagrams of specimens quickly.

• Use the official samples: GBSTA publishes sample practicals on its practical examination information page.

For the Interviews and Project (Phases III and IV)

• Choose a real question: Pick an action research topic from GBSTA's published list that connects to something you can observe at home or in school.

• Keep a project log: Record dates, observations and changes. It helps you answer follow-up questions confidently.

• Practise explaining aloud: Explain your project to a parent or teacher in under five minutes.

Is the Homi Bhabha Exam Worth Taking in Class 6?

For a curious Class 6 student, yes. The competition introduces practical work, interviews and a research project years before most students meet them at school. Even students who stop at Phase I gain a structured revision of three years of science and early experience of a timed objective paper. Students who continue in Std 9 can take the senior competition.

To sum up, the Homi Bhabha exam for Class 6 rewards understanding, observation and clear explanation. Keep the official dates handy, prepare for all four stages, and practise in the real format. Testkart's Homi Bhabha Class 6 test series can help you do that with regular timed tests before the written round.