Did tagore denied nobel prize?
No Tagore did not deny his Noble prize.
But Tagore did give up his Knighthood because of the Jalliyan wallabagh Massacre, thereby giving up his ' Sir ' honorific address. He did so because the knighthood is given by the Queen of England that is the same people who caused the massacre.
Whereas the Noble price is given by members of Swedish learned societies. So there is no point in denying it. But in 2004 Tagore's Nobel was stolen from Vishva Bharathi University locker. The Swedish Academy presented two replicas the same year.