
1) Buddhist holiday 2) Hindu festival in India 3) Non-Gregorian June observance
Found on
https://www.crosswordclues.com/clue/vesak

Vesākha (Pali;Vaiśākha, Devanagari: वैशाख), Wesak or Vesak, also known as Buddha Purnima and Buddha Day, is a holiday observed traditionally by Buddhists on different days in Nepal, Sri Lanka, Tibet, Bangladesh, Bhutan, India, and the South East Asian countries of Philippines, Singapore, Vietnam, Thailand, Cambodia, Laos, Malaysia, My...
Found on
http://en.wikipedia.org/wiki/Vesak
No exact match found.