Either apply directly through company’s website, or write cocubes exam, get good score, at least 580 for decent job offers, follow geeksforgeeks for coding and placement papers, start learning about sorting techniques, like Insertion sort, Bubble sort, Quicksort, Heapsort etc, know basics of memory allocation, learn syntax of functions like malloc,etc i.e, dynamic memory allocation and related topics are evergreen ones. Learn to code, try to find various resources to improve your skills, participate in hackathons, bag a title and apply directly via LinkedIn. Don’t forget to give some references, you can also send a video resume or an audio link with resume.