Sundri means a beautiful woman — and is the name of a brave heroine of Sikh literature, admired for courage and faith. It joins beauty with strength.
Sundri 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 Sundri reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.