In 2019, the Hindu nationalist Bharatiya Janata Party returned to power in India. The Bharatiya Janata Party oversaw the enactment of the Citizenship (Amendment) Act 2019 (‘CAA’) which gave Hindu, Sikh, Buddhist, Jain, Parsi and Christian (but not Muslim) migrants from Afghanistan, Bangladesh and Pakistan a fast-tracked pathway to Indian citizenship. This post argues that the CAA is unconstitutional, and uses it as an example to clarify two important under-theorised Indian constitutional principles: anti-subordination and arbitrariness.