During the Indian freedom struggle, the Central Hindu School was started by Annie Besant. Annie Besant was a prominent British social reformer, women`s rights activist, and theosophist who played a crucial role in the Indian freedom movement. She became actively involved in Indian politics and social issues after settling in India in the late 19th century.

The Central Hindu School, which later became the Banaras Hindu University, was founded by Annie Besant in 1898. It was established with the aim of providing education that combined Western and Indian traditions. The school aimed to promote nationalist ideas and empower the Indian youth to fight for independence.

Annie Besant`s contribution to the Indian freedom struggle was immense. She worked towards educating and empowering the Indian population and actively supported various freedom movements and causes. Her efforts played a significant role in mobilizing public opinion and creating awareness about the oppression faced by Indians under British colonial rule.

Therefore, the correct answer is option 1, Annie Besant.