Sachin Tendulkar: A Definitive Biography is a detailed biography of one of cricket's greatest batsmen, tracing Sachin Tendulkar's journey from his early years and teenage Test debut to his emergence as an international cricket icon. Purandare examines Tendulkar's batting technique, career development, records, successes and setbacks.

The book goes beyond statistics to explore Tendulkar's personality, cricketing mindset, controversies, disappointments and the influences that shaped his career. It places his achievements within the broader history of Indian and international cricket and includes rare anecdotes and insights into Tendulkar away from the public eye.