Sir, the lyrics were penned by Bhabananda Das, disciple of Raman Goshain and not by Bhaba Pagla. (P. S. The previous name of Bhaba Pagla was Bhabendramohan Chowdhury and not Ray Chaudhury)
It’s a mix of a lot of influences that I’ve gathered over the years, if you ask me, I’d like to think of it as contemporary folk music. However I also think it’s best to not get caught up with genres as it has a tendency of boxing things, it’s more important to forget about all that and just enjoy the experience.. thanks for listening!