Vyasa wrote the first 40,000 verses and this book was named Jaya. Afterwards other writers added more stories and it became known as Bharata. Later still more additions were made until the composition became the Mahabharata as we know it today.... We believe that Veds Vyasa was one person and that he alone composed the entire Mahabharata consisting of 100,000 verses, it is the world's largest epic in existence today and an encyclopedia of knowledge.