The correct answer is option 3, 1925. The Communist Party of India was founded in 1925. This political party was formed by a group of Indian revolutionaries who were inspired by the Bolshevik Revolution in Russia. They aimed to establish a socialist society in India through a revolution.

Option 1, 1835 is incorrect as the Communist Party of India was not founded in this year. Option 2, 1885 is also incorrect as this is the year when the Indian National Congress was founded, not the Communist Party of India. Option 4, 1964 is incorrect as by this time the Communist Party of India had already been in existence for almost 40 years. So, the correct answer is option 3, 1925.