How do you score 80% plus marks in NSIT/DTU (formerly DCE) ? WHAT is the secret behind the diligent life long toppers?

One of my friends faced a lot of issues in the initial years at NSUT. His aggregate for the first 2 years was 50%. He then decided to work hard and made a new strategy. By the end of 4 years, his aggregate increased to 80%. Currently, he is pursuing MS in computer science at the University of Maryland, College Park, USA. Initially, he was distracted by the freedom of college life and the dilemma of choosing MS vs MBA. 

Firstly, you need to focus on your studies and target a high score. Stop paying heed to people who say college life is all about fun. College is about realizing a dream and setting plans to achieve them. So, give up on distractions and start working hard to get good grades. He realized that scoring 80+ in college is possible for everyone but because of the ongoing activities and distractions, it becomes almost impossible.

In simple words, all you need is to find the passion within you that will drive you to perform at your level best. Find a good company that motivates you instead of mocking you.