Hi there,

The general answer you will get is by studying. I hope you must have heard this quote "With great power, comes great responsibility". So when you go to IIT you get fame and recognition but also you start to ease yourself after all the hardwork you had done since last two years. Because of this attitude you could have heard many stories about how people score lower than expected marks in their first semester. To maintain a good CGPA throughout you need to maintain good lifestyle and schedule which often gets disturbed because of happening hostel life. Anyhow you have to remain on that track and follow it as religiously as possible.

Now setting this schedule is upon you because you only know yourself the best.