Dear Adarsh, there is no entrance examination by name BEER. But if it is a typing error and you meant NEET 2021, NTA as of now has only released NEET 2020 syllabus. We shall mention it here. But if it is not NEET, please do let us know and we shall help you in detail.

The Syllabus for Physics Includes:

Physical World and Measurement
Kinematics
Laws of Motion
Work, Energy and Power
Motion of System of Particles and Rigid body
Gravitation
Properties of Bulk Matter
Thermodynamics
Behaviour of perfect gas and kinetic theory
Oscillation of waves
Electrostatics
Current Electricity
Magnetic effects of current and magnetism
Electromagnetic induction and alternating currents
Electromagnetic waves
Optics
Dual Nature of matter and radiation
Atoms and nuclei
Electronic devices

Syllabus for Chemistry Includes:

Some Basic Concepts of Chemistry
Structure of Atom
Classification of Elements and Periodicity in Properties
Chemical Bonding and Molecular Structure
State of Matter: Gases and Liquids
Thermodynamics
Equilibrium
Hydrogen
S-block Element
Some p-block Elements
Organic Chemistry
Hydrocarbons
Environmental Chemistry
Solutions
Chemical Kinetics
Surface Chemistry
General Principles and Processes of Isolation of Elements
D and F Block Elements
Coordination Compounds
Haloalkanes and Haloarenes
Organic Compounds Containing Nitrogen
Biomolecules, Polymers and Chemistry in Everyday life

Syllabus for Biology includes:

Diversity in Living world
Structural Organization in Animal and Plants
Cell Structure and Function
Plant Physiology
Human Physiology
Reproduction
Genetics and Evolution
Biology and Human Welfare
Biotechnology and its applications
Ecology and Environment