Actually, it's from Sanskrit origin and the meaning is sunrise.
an Indian political and social activist. She served as a civil servant in the Indian Administrative Service from 1968-1974, before resigning to become social activist and working to empower villagers in Rajasthan She is best-known for her campaigns to better the lives of the rural poor in Rajasthan, and as the head of Mazdoor Kisan Shakti Sangathana, which she founded in 1990, and which worked towards the successful enactment of 'Rajasthan Right to Information Act'. 
Aruna also appears in following countries/origins/languages: German
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Meaning of Aruna in Hindu origin/culture for Girl name with history and fame details.