(a) Shivaji was crowned as an independent king at Rajgarh, in 1674. Hence, option (a) is the correct answer. Shivaji (1630-1680) was also known as Chhatrapati Shivaji Maharaj. He was an Indian Maratha ruler who challenged Mughals. He helped people who wanted to convert to Hinduism. He also promoted Hindu and Sanskrit political traditions. Shivaji was known for Treaty of Purandar in 1665 . He was also considered a master of the Guerrilla Warfare.