SDE - 1

Tip 1 : Consistency is the Key. 
Instead of solving huge number of problems just before the interview, having long term goal of solving atleast 1 question in a day for 2-3 months would help you in the long run. Personally, I would suggest to keep doing it even after bagging your dream offer because when it is done for long time, it gets stored in conscious mind unlike the case when you are preparing just few days before the interview in which case everything straight goes to your sub-conscious mind. Especially when you are preparing for DSA, because once we start doing dev work during our job, we don't solve DSA problems directly there and so the DSA knowledge slowly start vanishing from our mind.
Tip 2 : Early started is half done.
The more early you start applying for internships, the more you have chances of getting better offers and good number of projects to work on. Try to start applying for internships from the second year itself so that by the end of you college life, you have an amazing portfolio. This will also give you an edge over your colleagues of your level from the very start of your career and you would start to amaze others with your speed and knowledge. Such people have high chances of growth and your manager would always consider you opinion when taking big decisions.
Tip 3 : Be the Jack of All, but Master of Atleast One.
Build and work on atleast 3 projects from scratch during college days, because that helps you to understand all the small nuances involved to make a POC (Proof of Concept) and will give you a huge confidence upon completion. Also, when you start working on projects, it helps you to narrow down the domains where you want to continue and where you don't want to continue your career further. It is equally important before graduating, because if you don't love what you are doing, you would soon start getting burnouts.

Tip 1 : Keep it one pager
Tip 2 : Use XYZ format (Google it) to describe work experiences and projects