Tip 1 : It is recommended to know at least one language thoroughly (C, C++, Java, Python)
Tip 2 : Students generally are skip practice part and landing into trouble when asked to write the code in a live interview. Therefore, PRACTICE is strongly recommended from websites like hackerrank, coding ninjas, leetcode etc.
Tip 3 : Deep dive into your Core subjects.
Tip 4 : Practise 5-6 problems daily. 2Easy, 2Medium, 2Hard
Tip 5 : Don't do half learning. Though it takes time be perfect at each concept you learn.