Hey.   

Here are a few good books that you can refer to for preparation of NCHM JEE.

Arihant Study Package for Hotel Management and Hospitality Administration

How to Prepare For the Hotel Management Entrance Examination by Thorpe

Hotel Management Entrance Exam Guide by Dr R P Datason.

Here is some helpful material sectionwise-

• General Knowledge and Scientific Aptitude Section- Consized sized pearson or Lucent. Or any monthly yearly magazine- like Pratiyogita Darpan
• English Language Section - Wren and Martin
• Numerical Ability and Analytical Aptitude-      RS Aggarwal
•  Verbal and Non-Verbal Reasoning by RS Aggarwal     
• Service Aptitude Section -
• R Gupta’s book for Hotel Management