Vasanthi (वसन्ती / வசந்தி) is the Sanskrit-Tamil word for "spring" — the season of flowering. Used widely in South India.
Vasanthi Devi is the Indian academic and former Vice Chancellor of Mother Teresa Women's University.
Vasanthi is a compound name. Its parts are ánthos — each an attested element with a recorded meaning of its own.
Vasanthi 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 Vasanthi reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.