If you need a video related to the topic of "bol" (which can refer to various things, such as the acronym for "Beyond Organic Living" or the Hindi word for "speak"), unfortunately, I cannot directly provide videos. However, you can search for relevant videos on platforms like YouTube or Vimeo by using keywords such as "bol meaning," "bol pronunciation," or "bol Hindi tutorial." This will help you find videos that explain the concept or provide guidance on how to speak or pronounce the word "bol."

Regarding NCERT textbooks, you can visit the official website of the National Council of Educational Research and Training (NCERT) to access their textbooks in various subjects. The textbooks are available for free in PDF format, and you can download them from the NCERT website (www.ncert.nic.in). These textbooks are widely used in schools across India and cover topics from various subjects for different grades.