Hello Aspirant,

If this query is regarding the previous one, then you need the syllabus of Mathematics for JEE-Main 2021. So as per the latest announcement made by our Hon'ble Education Minister Mr. Ramesh Pokhariyal Nishank, the JEE-Main 2021 and NEET 2021 will be conducted on the basis of revised syllabus of CBSE so there is no need to study the reduced/deleted topics and the revised syllabus by CBSE for Mathematics is described below :-

@Mathematics

Class 11th :-

Sets

Relations & Functions

Trigonometric Functions

Complex Numbers and Quadratic Equations

Linear Inequalities

Permutations and Combinations

Sequence and Series

Straight Lines

Conic Sections

Introduction to Three-dimensional Geometry

Limits and Derivatives

Statistics and Probability

Class 12th :-

Relations and Functions

Inverse Trigonometric Functions

Matrices & Determinants

Continuity and Differentiability

Applications of Derivatives

Integrals

Applications of the Integrals

Differential Equations

Vector algebra and three-dimensional Geometry

Linear Programming

Probability

For detailed syllabus kindly check out the PDF published by CBSE :-

http://cbseacademic.nic.in/web_material/CurriculumMain21/revisedsyllabi/SrSecondary/REVISEDMathematics_Sr.Sec_2020-21.pdf

I hope this information helps you if not then please mention the name of board or exam for which you want to get chapters of Mathematics.

Good Luck!!