The correct answer to the question is option 2, Madame Blavatsky.

Option 1, Swami Dayanand Saraswati, was a Hindu religious leader and the founder of the Arya Samaj, a reformist movement in Hinduism. He was not involved in the founding of the Theosophical Society.

Option 3, Madame Cama, was an Indian independence activist and a prominent member of the Indian National Congress. She was not involved in the founding of the Theosophical Society.

Option 4, Lala Hardayal, was an Indian nationalist and founder of the Ghadar Party. He was not involved in the founding of the Theosophical Society.

The Theosophical Society was founded in New York City, United States of America, in 1875 by Madame Helena Petrovna Blavatsky, along with Henry Steel Olcott and William Quan Judge. It aimed to promote the study of comparative religion, philosophy, and science and to explore the spiritual aspects of life. Madame Blavatsky was a prominent Russian occultist, philosopher, and author, and she played a significant role in the formation of the Theosophical Society.