Answer:
(Fatwa: 243/243=M/1430)
Chandni means: moonlight, white sheet, a kind of flower
Naznin means: beautiful, fascinating, charming
Both the names are correct. It is permissible to have some prefix name as well.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
