Darshana is from the Sanskrit darśana (दर्शन — sight, vision, philosophical insight). Darshana is one of the Sanskrit feminine names — central to traditional Hindu + Jain + Buddhist heritage. Also refers to Hindu temple darshan (sacred viewing of the deity).
Darshana 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 Darshana reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.