Karnataka Textbooks 4th Class: Karnataka Class 4th Textbook published by the Karnataka Text Book Society (KTBS). KTBS Syllabus Book Class 4 is available in Kannada, English, Hindi, Telugu, Tamil, Marathi, and Urdu subjects. Karnataka Class 4 Standard students check their subject books on the official website, https://textbooks.karnataka.gov.in/. KTBS Karnataka Class 4 Std Mathematics Pa...