The Six Systems of Indian Philosophy
Article by V. Madhrima, covering the development and principles of these schools of thought from the Vedic period through the eleventh century AD.

Indian and Islamic Philosophy
Article by Alan Woods which reviews the historic development of these two traditions, making a Marxist distinction between progressive and regressive elements.

Ethics of Civilization to 30 BC
A study of the influence of philosophy and religion on civilizations, with sections on India and China.