Buy Paperback book and ePDF (Digital) Book Loading… About the Author Anjeev Kr Singh Computer Science Educator, Author, and HOD. Guiding CBSE students in CS, IP, IT, WA & AI via mycstutorial.in. Creator of Question Bank for Class 10 & 12 students. YouTube: YouTube@anjeevsingh | Web Site: anjeevsinghacademy.com