The Saptanga Theory was propounded by Kautilya. This theory is a foundational concept in ancient Indian political science and is also known as the Theory of Seven Limbs. It is outlined in Kautilya`s famous book, Arthashastra.
Option 1: Manu - Manu is associated with the Manusmriti, which deals with laws and ethics. However, the Saptanga Theory is not attributed to him.
Option 2: Charaka - Charaka is known for his contributions to Ayurveda, the ancient Indian system of medicine. While Charaka made significant contributions to the field of medicine, he did not propound the Saptanga Theory.
Option 3: Kautilya - Kautilya, also known as Chanakya, is credited with propounding the Saptanga Theory. He was a sage, teacher, and advisor to Emperor Chandragupta Maurya.
Option 4: Tulsidas - Tulsidas was a poet and saint who is famous for his work Ramcharitmanas. He is not associated with the propounding of the Saptanga Theory.
Therefore, the correct answer is option 3: Kautilya.