I agree, educational videos that are both informative and entertaining are becoming a rarity due to the changing global culture. It is good that you have access to this in Bangla, and I think I have found my kids watching some of the videos from this channel several years ago. They don't understand Bangla, but often times the story can be understood without the language.
Is the Bangla spoken in India the same as the Bangla in your country? Perhaps the accents are a little different, here in Cambodia the same language is spoken all over country, but the pronunciation and accents are all very different in eac region.
RE: My Favorite YouTube Channels || Infobells Bangla