Taking serious exception to Harbhajan Singh's Ravana act on a reality show, the Akal Takht has demanded a public apology from the cricketer. "To wear a tilak (vermilion) on the forehead and to dress like Ravana and dance with a woman publicly is highly disgusting. The act was shown on several TV channels and the Sikh community can never tolerate such behaviour," Jathedar Gyani Gurbachan Singh said.Singh was referring to the 28-year-old's performance with actress Mona Singh during the show Ek Khiladi, Ek Hasina aired this week. The Jathedar claimed that Harbhajan's act had hurt the sentiments of Sikhs and he should apologise. "So far, no one has lodged a written complaint with the Akal Takht. However, anyone can do that and suitable action against the cricketer can be initiated," he said.