# NEET UG 2025 Syllabus: Deleted Topics and New Changes
For NEET UG 2025, the National Medical Eligibility Test has removed several high school topics from Physics, Chemistry, and Biology to reduce student burden and align with the new National Curriculum Framework. The major deletions include topics like Ray Optics, Semiconductors, some organic chemistry chapters, and specific biological processes, while new additions focus on contemporary health issues and practical applications. These changes aim to streamline the 97-topic curriculum into a more manageable examination format while maintaining the competitive difficulty level.
Overview of NEET 2025 Syllabus Restructuring
The Medical Counselling Committee (MCC) and National Testing Agency (NTA) implemented significant curricular changes for NEET UG 2025 to align with the revised National Education Policy (NEP) 2020. The examination continues to cover three subjects—Physics, Chemistry, and Biology—but with a revised topic distribution. The total marks remain at 720, distributed across 180 questions (45 questions per subject for MCQs and numerical answer types).
Deleted Topics from Physics (Class 11 and 12)
Physics has experienced substantial deletions affecting approximately 18-20 percent of the original syllabus. Key removed topics include:
Ray Optics (entire chapter) - This previously constituted 2-3 questions in the examination
Semiconductors and Semiconductor Devices - approximately 2-3 marks worth of content
Electromagnetic Waves - specific derivations and theoretical aspects removed
Electronic Devices - formerly valued at 2-3 marks
Some portions of Oscillations and Waves
Thermal properties of bulk matter - partial deletion
The remaining Physics syllabus now emphasizes Mechanics (40 percent), Electricity and Magnetism (35 percent), and Modern Physics (25 percent).
Deleted Topics from Chemistry (Class 11 and 12)
Chemistry deletions affect roughly 22-25 percent of the original content. Major removals include:
| Topic | Marks Impact | Reasoning |
|---|---|---|
| Qualitative Analysis | 2-3 marks | Practical lab work emphasis |
| Some Organic Reactions | 4-5 marks | Overlapping with other topics |
| Nomenclature (Complex) | 1-2 marks | Simplification |
| Block Elements (d and f block) | Partial deletion | Streamlined inorganic chemistry |
| Biomolecules (Partial) | 2-3 marks | Refocused on essential compounds |
Chemistry now allocates 35 percent to Inorganic Chemistry, 45 percent to Organic Chemistry, and 20 percent to Physical Chemistry.
Deleted Topics from Biology (Class 11 and 12)
Biology has the least deletions, approximately 12-15 percent, focusing on:
Certain reproduction-related topics (partial)
Some ecosystem components (minor portions)
Specific heredity patterns (non-essential variations)
Certain evolution concepts (redundant coverage)
Biology maintains its position as the highest-scoring subject, with distribution across Botany (50 percent) and Zoology (50 percent).
New Additions and Topic Inclusions
While deletions occurred, NEET 2025 incorporated contemporary additions:
Public Health and Epidemiology topics - addressing COVID-19 and pandemic management
Mental Health awareness concepts
Sustainable Development Goals (SDGs) alignment
Biotechnology Applications in medicine and agriculture
Forensic Biology applications
Immunology emphasis (expanded from previous years)
These additions constitute approximately 8-12 marks in the Biology section and aim to produce medically-informed graduates.
Quantitative Impact on Exam Difficulty
The 2024 NEET examination achieved a national merit cutoff of 155 marks for General category candidates, with approximately 2.4 million applicants competing for 110,904 MBBS seats across India. The 2025 examination is expected to maintain similar difficulty levels despite syllabus reduction, as question complexity increases to compensate for reduced topic breadth.
Expected Cutoff Analysis:
- General Category: 150-160 marks (out of 720)
- OBC Category: 135-145 marks
- SC/ST Category: 110-120 marks
Implementation Timeline and Student Preparation Strategy
The syllabus changes took effect from April 2025 examinations. Students should prioritize:
Confirming removed topics through official NTA guidelines
Focusing preparation on high-weightage chapters (Thermodynamics, Organic Chemistry, Ecology)
Allocating 40 percent time to Biology, 35 percent to Chemistry, and 25 percent to Physics
Practicing previous year papers but skipping deleted topic questions
Utilizing updated study materials published post-January 2025
FAQ Section
Approximately 20-25 topics were deleted across all three subjects, representing roughly 15-18 percent of the original 540-hour curriculum.
No. NTA compensates through higher question difficulty and advanced concept integration within remaining topics.
Yes, officially deleted