Dear Aspirant,

There is no such set pattern in which one should study. Although I will tell you the sequence in this answer, which according to me, is good for your preparation journey. Your main focus should be on completing the syllabus as fast as possible and solving as many questions as you can. Also, you should give mocks regularly to take your preparation to a higher level. Mocks are the most important thing for any exam.

PHYSICS:

1. Rectilinear Motion
2. Projectile Motion
3. Relative Motion
4. Newton's Laws of Motion
5. Friction
6. Work Power Energy
7. Circular Motion
8. Centre of Mass
9. Rotational Dynamics
10. Simple Harmonic Motion
11. Electrostatics
12. Gravitation
13. Current Electricity
14. Heat Transfer
15. Capacitance
16. EMF
17. EMI
18. Alternating Current
19. Geometrical Optics
20. Electromagnetic Waves
21. Waves on String
22. Sound Waves
23. Wave Optics
24. Modern Physics
25. Thermodynamics
26. Fluid Mechanics
27. Mechanical Properties of Solids
28. Semi-Conductors
29. Communication System

CHEMISTRY:

PHYSICAL/INORGANIC:

1. Mole Concept
2. Quantum Mechanical Model
3. Periodic Table
4. Gaseous State(Real Gas)
5. Chemical Bonding
6. Chemical and Ionic Equilibrium
7. Coordination Compounds
8. Electrochemistry
9. Metallurgy
10. Qualitative Analysis(Anion)
11. P Block(Class 11)
12. Chemical Kinetics
13. Qualitative Analysis(Cation)
14. Liquid Solution
15. Surface Chemistry
16. S Block
17. Solid State
18. P Block(Class 12)
19. Thermodynamics and Thermochemistry
20. Equivalent Concept
21. D and F Block

ORGANIC

1. IUPACNomenclature
2. Structural Isomerism
3. Structural Identification and POC
4. GOC
5. Stereoisomerism
6. Organic Reaction Mechanism-1
7. Reduction Oxidation and Hydrolysis
8. Organic Reaction Mechanism-2
9. Aromatic Compounds
10. Carbonyl Compounds and Carboxyllic Acid
11. Biomolecules
12. Polymer
13. Chemistry in Everyday Life

MATHEMATICS:

1. Sets
2. Fundamentals of Mathematics (Inequalities, Logarithms, Modulus, Trigonometry)
3. Quadratic Equations
4. Relation
5. Function
6. Inverse Trigonometric Functions
7. Statistics
8. Sequence and Series
9. Matrices and Determinant
10. Straight Lines
11. Circle
12. Limits, Continuity and Differentiability
13. Method of Differentiation
14. Application of Derivatives
15. Mathematical Reasoning
16. Conic Sections (Parabola, Ellipse and Hyperbola)
17. Indefinite Integration
18. Definite Integration and It's Application
19. Differential Equations
20. Vectors and 3D Geometry
21. Complex Numbers
22. Solution of Triangles
23. Binomial Theorem
24. Permutation and Combination
25. Probability

Hope this helps.