As you asking I am giving recommended books name for preparation NMIMS Management Aptitude Test (NMAT) exam along with its syllabus


S. Chand A Complete Kit for MBA Entrance Examinations Sanjeev Verma & J.K. Gangal

S.Chand Quantitative Aptitude For Competitive Examinations R. S. Aggarwal

Objective General English 10,000 Plus Questions R.S. Aggarwal & Vikas Aggarwal

Quantitative Aptitude for MBA Entrance Examinations Abhijit Guha

Quantitative Aptitude For CAT Arun Sharma

A Modern Approch To Logical Reasoning R.S Aggarwal

Ramesh Logical and Analytical Reasoning by Ashok Gupta

Syllabus
Quantitative Skills

Data Interpretation
Problem Solving
Data Sufficiency
Arithmetic
Modern Math
Geometry
Algebra
Number Systems

Language Skills

Mark the error
Fill in the blanks
Para jumbles
Synonyms & Antonyms
Idioms
Vocabulary

Logical Reasoning

Arrangements
Family Tree
Numerical grid
Coding
Series
Verbal reasoning on the topic of Statement-Conclusion, Syllogisms & Critical Reasoning