Rupinder is from the Punjabi rup (beauty, form) + inder (Indra, king of gods) — king of beauty, supreme beauty. Rupinder is one of the Sikh + Punjabi unisex names — central to traditional Sikh + Hindu Punjabi heritage. The Punjabi -inder suffix derives from Sanskrit Indra + is one of the Sikh + Punjabi unisex naming endings alongside Jasinder, Davinder, Surinder, Narinder, Manvinder, Harminder, Kuldip. Sikh-Punjabi unisex name.
Rupinder 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 Rupinder reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.