National Rail and Transportation Institute conducts NRTI-Aptitude Test for admission in Undergraduate courses. The syllabus for this aptitude test includes proficiency in English language, reasoning & general intelligence, numerical ability, general awareness. Since the courses provided are new and professional, therefore books for preparing the test are really less. For understanding the pattern of questions and level of the test, candidates can refer the book- NRTI Aptitude Test Guide: For undergraduate programme (Link: https://amzn.to/2PKujLB ) . This book has a structured content which will help in the preparation of the aptitude test. It comprises of mock test paper by which candidates can analyse their preparation and know about question variety of the test.

Hello aspirant

1.for aptitude : R S Agrawal.

2.  for English: Wren and Martin,

3.for General Knowledge(Current Affairs):keep yourself up to date and keep reading the newspapers

hope that helps