Please refer the below link to access one of the previous year sample paper:

https://blog.oureducation.in/manipal-online-test-sample-paper/

also refer the below link for other sample papers

http://entrance-exam.net/forum/general-discussion/previous-year-question-papers-manipal-b-tech-entrance-exam-solutions-1732754.html

hey Adireddy,

Previous years question papers are very essential for cracking any exam.

You can get your previous years papers by following the link-

http://www.entranceindia.com/manipal-engineering-previous-year-question-papers-pdf-download/

not only previous years papers there are lot more stuff available for manipal entrance exam here.