Delhi University conduct a common test for MCA course,
Pervious year question papers are never uploaded on the official website of the Delhi University, when uploads you
Can find here,

For your information here I provide the exam Information and Syllabus:

Details of the DU MCA Exams:

Application dates: applications process for this exam is generally starts in the first month of May and last date of application submission is first month of June

Exam date: Exam is generally conduct on the last months of the June

Syllabus:

Mathematics: BSc level
Computer Science: C- Programming
Logical ability & English Comprehension: Problem solving using basic concepts of arithmetic, algebra, geometry and data analysis