Question

when India named India?

Answer 1

The name India is derived from Indus, which originates from the Old Persian word Hindu. The latter term stems from the Sanskrit word Sindhu, which was the historical local appellation for the Indus River. The ancient Greeks referred to the Indians as Indoi (Ἰνδοί), which translates as "The people of the Indus

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Answer 2

It is a modernisation of the historical name Bharatavarsha, which traditionally referred to the Indian subcontinent and gained increasing currency from the mid-19th century as a native name for India. Hindustan ( listen) is a Persian name for India dating back to the 3rd century BCE.