Mediator in Malayalam

Malayalam words whose English meaning includes “mediator”:

പൊതുവാള്‍ (pothuval) — A caste among temple servants, mediator.
മദ്ധ്യസ്ഥന്‍ (maddhyasthan) — Mediator, neutral or impartial man, middleman, arbitrator, an intermediary, Siva.