Biotechnology

Hi,
I'm assuming that you're already a Biotech student at NSIT. So, the option of switching to COE/IT or related courses is out of reach.
Do biotech students get time for other activities?
Well, that's up to you. No engineering course is so intense that will keep you engaged all the time. The amount of time you can take out for other activities (e.g. programming, at it seems, in your case) is completely in your hands.
A major portion of students get placed in software related profiles (irrespective of their branch). That is good enough indicator of the coding atmosphere in NSIT. There are a number of platforms through which you can enhance your programming skills:
1) Periodic sessions conducted by societies like IEEE, CSI, etc.
2) Facebook groups
3) On the personal front, use challenges at Codechef, SPOJ, etc.
Other than this, you can obviously get in touch with your peers and seniors for guidance.
I don't have enough information to compare between the coding environment of DTU and NSIT.
Regarding NSIT's placement for Biotech in COE/IT related profiles, I suggest you get in touch with your 4th-year biotech seniors and/or students at Placecomm.
All the best.

Biotechnology is an interdisciplinary branch of science which is favorite among youngsters as it is providing ample opportunities for those who want to explore the new and advanced frontiers of science. It does not refer to a specific industry or job. The applications of Biotechnology is broad as it feeds to various industrial sectors like food, textiles, pharmaceutical, agriculture, animal husbandry and more.
Biotechnology includes several subjects apart from biology making it interdisciplinary. Along with the scientific part and engineering applications, biotechnology is giving rise to various new fields with humongous job opportunities. Being honest, let me tell you, the placements from biotechnology are not that good when compared to other branches. Biotechnology is the future, it is still developing whereas other branches are centuries old and well established. But if you are up for it, go for it.
And IIT Roorkee is one of the best IITs. There is no scope of mediocrity here, the institute invites the best players from the industrial world to get their students placed. Around 76% students get placed from the batch. The average package is about 6 lac per annum. But don't worry, it increases o0nce you in the room. If you are looking for more money, then go for non-core jobs.