JEE Main is a national-level entrance exam in India for admission to undergraduate engineering and architecture programs. Here's an overview:

Exam Pattern:

1. Mode: Online (Computer-Based Test)

2. Duration: 3 hours

3. Sections: Physics, Chemistry, and Mathematics (for B.E./B.Tech) or Mathematics, Aptitude Test, and Drawing Test (for B.Arch)

4. Question Type: Multiple Choice Questions (MCQs) and Numerical Value Questions

5. Marking Scheme: +4 for correct answer, -1 for incorrect answer, and 0 for unattempted questions

Syllabus:

The syllabus covers topics from Class 11 and 12, including:

1. Physics: Mechanics, Electromagnetism, Optics, Thermodynamics, and more

2. Chemistry: Physical Chemistry, Inorganic Chemistry, Organic Chemistry

3. Mathematics: Algebra, Calculus, Coordinate Geometry, Trigonometry, and more

4. Aptitude Test (B.Arch):Awareness of persons, places, Buildings, Materials, Visualisation, and more

5. Drawing Test (B.Arch):Geometric drawing, Three-dimensional perception, and more

Eligibility Criteria:

1. Age:No age limit

2. Qualification class 12 or equivalent with Physics, Mathematics, and Chemistry/Biology/Biotechnology

3. Percentage:75% or above in Class 12 (65% for SC/ST/PwD)

Application Process:

1. Registration: Online registration on the official website (jeemain.nta.nic.in)

2. Application Fee:650 (325 for SC/ST/PwD)

3. Upload Documents: Scanned images of photograph, signature, and other required documents

Important Dates:

1. Application Form Release:Typically in December

2. Application Form Submission: Typically in January

3. Exam Dates: Typically in February and March

4. Result Declaration:Typically in March and April

Preparation Tips:

1. Start Early: Begin preparation at least 6-12 months before the exam

2. Focus on Fundamentals: Strengthen your understanding of Class 11 and 12 concepts

3. Practice Mock Tests:Regularly practice mock tests to improve your speed and accuracy

4. Join Coaching or Online Resources: Consider joining coaching classes or online resources for additional support

I hope this information helps you get started on your JEE Main journey!