Aishwarya (ऐश्वर्या) is from the Sanskrit īśvarya ("prosperity, wealth, divine power") — one of the six attributes of Hindu divinity. Aishwarya Rai Bachchan (born 1973) — the Indian actress and former Miss World 1994 whose film career has spanned Tamil, Hindi, English, and Bengali cinema. Padma Shri (2009) — India's fourth-highest civilian honor.
Aishwarya does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Aishwarya reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.