Is it alright for me to again seek supervision from a professor with a new research topic whom I had contacted few days back but he was skeptical about my research topic?
I did that twice, once with my master's thesis and once with my PhD. With the master's, I myself quickly realized that I didn't have the requisite background to complete a thesis on my intended topic in a timely fashion and the supervisor was glad I had come to my senses. With the PhD, I found myself in the unfortunate situation where someone had just published a book that almost exactly corresponded to my proposed thesis; I was demoralized and felt I had nothing new to say. Again, the supervisor was supportive of my decision to change topics.
The relationship between the supervisor and a researcher in always based on communications and discussions. Step-by-step is the right approach in approving the quality of all kind of research work.
Any professor whose supervision practice is - as it ought to be - inforrmed by the ethics of educational professionalism, should welcome open-ended discussions with supervisees about any aspect of research work. Without such rational co-operation and negotiation, worthwile studies would never be completed successfully. You have every entitlement to discuss your research work with your supervisor at any level and at any time. Very best of luck with all the work!