New Healthtech Entrepreneur: What's Next?

Ans: In the past too, I have suggested approaches to take with respect to identifying and validating business ideas to previous Rediff users. Kindly go through the same. Let me repeat it here.
There are several opportunities but you need to focus on those which
1) are relevant to your experience, expertise,network, passion,
2) take into account finance available or that can be organised by you, plus
3) offer growing prospects.
Re your idea in health/ healthtech, I would request you to do a lot of research, secondary first, and then primary. That will help you understand which specific niche you might want to target. There are several aspects to consider here. If you don't have relevant experience, expertise and contacts in this industry, it would be good to build that or co-opt co-founders with complementary skills. It may be useful to join an incubator.
Before that, it may be good to develop a better understanding of entrepreneurship and what it entails. You could do online courses or listen to seasoned, successful entrepreneurs online or talk to such people in the real world and even build a network of potential entrepreneurs. Remember, entrepreneurship is high risk and one needs to anticipate the risks, manage them and mitigate. It is a journey which can be rewarding too if one stays the course.