Tip 1 : Master Your Data Structures and Algorithm, solving Leetcode, Geeksforgeeks, having a great solved count is not that important. Just make sure, you are comfortable.
Tip 2 : Master Your Data Structures and Algorithm, if you think, you are done, try reading more about competietive programming topics at https://cp-algorithms.com/
Tip 3 : Have at least 2 Good Project, That would be an advantage
Tip 1 : Try to complete in 1 page, without reducing the beauty. Show atleast 2 project, 2 hackathons, 1 internship, and your achivement.
Tip 2 : Be honest. Copying something from github, isn't a great idea. You can do, but please work in it. Spend 1 week reading that code, and try implementing that project by yourself, and then put into the resume.