Hello Candidate

Here are the steps you can follow

Step 1: Know DUET syllabus thoroughly.

Step 2: Understand the DUET Pattern (https://www.shiksha.com/university/du-delhi-university/duet-exam-pattern) and marking scheme and prepare accordingly.

Step 3: Get all the study material like prep books and previous years question papers to help better understand what to expect in the exam.

Step 4: Create a monthly timetable on how much material to cover on a daily basis.

Step 5: Solve question papers, sample papers and mock tests.

Hope this information is useful .

GOOD LUCK!!