Khan sir:

Khan Sir , born Faizal Khan , is an Indian educator celebrated for his engaging teaching style and affordable education. He rose to fame with his YouTube channel and Khan Sir Official app, reaching ... Discover the best books to prepare for Entrance and Government Exams Books. Boost your success with top-rated study guides and practice materials. Buy Now! Faizal Khan (born 1993), known professionally as Khan Sir (pronounced [ˈxɑːn səɾ] ⓘ), is an Indian Educator and YouTuber based in Patna, Bihar. He runs a coaching centre for students preparing for different kinds of competitive exams in India. Khan Sir is an Indian teacher and social worker. He is popular for his way of teaching current affairs. He is the founder and owner of Khan GS Research