hi,

see in official website of mahatma gandhi kashi vidyapith there is no demo for previous year questions papers, however you may prepare for the exam by using other university or law entrance test like clat, amity law entrance etc. as per clat syllabus questions is based on general awareness questions , english, general aptitude and questions on constitutional law. you may follow the below books for your exam preparations,

Verbal and Non-Verbal Reasoning by RS Aggarwal

Analytical and Logical Reasoning by RS Aggarwal

Analytical Reasoning by MK Pandey

Comprehensive Solutions-CLAT 2020 Fundamental Reference Book by Dr om krishna