Keshav Gangadhar Tilak was born on 23rd July, 1856 in a Brahmin family of a middle class in Ratnagiri district of Maharashtra. His father Gangadhar Shastri was a noted Sanskrit Pandit and taught at Ratnagiri School. His mother's name was Parvati Bai Gangadhar. After his father's transfer, his family moved to Pune. Tilak was married to Satyabhama in 1871. Tilak passed the matriculation test in 1872, graduated from mathematics in 1877 and received an LLB degree in 1879.
He founded the New English School on January 2, 1880, which he taught English and Mathematics. After the success of this school, he laid the foundations of the Deccan Education Society in 1884 and Ferguson College in 1885. Bal Gangadhar Tilak was one of the main manufacturers of modern India. He entered active politics in 1905 and joined the country's freedom struggle with great vigour and enthusiasm. He was the first to advocate Purna Swaraj for India. Not only did he start a nationalist movement against British rule, but he linked Swaraj with the freedom movement.
Tilak gave the famous slogan 'Swaraj is my birthright, and I will live with it'. The slogan became the inspiration of revolutionaries during the country's freedom struggle. He got the title of Lokmanya because of his popularity among the countrymen.