All the information pertaining to LPUNEST such as syllabus, previous year question papers, sample papers is given on the lpunest website. You can click on the website and get the required information. Hope this helps. Good Luck

Recently, I have given the exam in the month of February and before that, I too searched for the same information which you are seeking right now. I came up with some reading around web forums and articles which led me to know that there is a link for the sample paper for which people usually seek for i.e. https://nest.lpu.in/engineering/sample_questions.php this helped me a lot in getting a rough idea of the exam. May this helped you with your query. 

Good luck.