So want the topics for the Common Admission test (CAT) exam, I am mentioning them, check below for the details

Quantitative Ability

Number Systems
LCM and HCF
Percentages
Profit, Loss and Discount
Interest (Simple and Compound)
Speed, Time and Distance
Time and Work
Averages
Ratio and Proportion
Linear Equations
Quadratic Equations
Complex Numbers
Logarithm
Progressions (Sequences & Series)
Binomial Theorem
Surds and Indices
Inequalities
Permutation and Combination
Probability
Functions
Set Theory
Mixtures and Alligations
Geometry
Co-ordinate Geometry
Trigonometry
Mensuration

Data Interpretation

Tables
Column Graphs
Bar Graphs
Line Charts
Pie Chart
Venn Diagrams
Caselets

Logical Reasoning

Number and Letter Series
Calendars
Clocks
Cubes
Venn Diagrams
Binary Logic
Seating Arrangement
Logical Sequence
Logical Matching
Logical Connectives
Syllogism
Blood Relations

Verbal Ability

Vocabulary Based (Synonyms Antonyms)
English Usage or Grammar
Sentence Correction
Fill in the blanks
Cloze Passage
Analogies or Reverse Analogies
Jumbled Paragraph
Meaning-Usage Match
Summary Questions
Verbal Reasoning
Facts / Inferences / Judgements
Reading Comprehension