Who is a Hindu ?

The term is found in Meru Tantra  (4 th to 6 th century AD), which says :

हीनं च दूष्यत्येव हिन्दुरित्युच्यते प्रिये।

Meaning : That which destroys the callous and inferior Raja-Tama components is called Hindu. One who rejects these
lower tendencies – whether physical, verbal, or mental – and instead embraces a Sattva predominant life, considers
devotion to God as the essence of existence, seeks the Divine, and adheres to Karmayoga (Path of Action) to guide
society, is to be termed a Hindu.