Vibha is from the Sanskrit विभा (Vibhā — brilliance, radiance, luster, shining light) — from Sanskrit root vi-bhā (to shine forth). Vibha is one of the Sanskrit feminine names — central to traditional Hindu Vedic heritage.
Vibha 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.
In Pythagorean numerology the letters of Vibha reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.