Which thinkers and topics are covered in Paper 1?

Sectional Tests 1 and 2 cover Indian philosophy, from Carvaka, Jainism and Buddhism to Nyaya-Vaisesika, Mimansa and Vedanta. Tests 3 and 4 cover Western philosophy, from Plato and Aristotle to Kant, Hegel, Wittgenstein, Phenomenology, Existentialism, Quine and Strawson.