New Delhi, Oct 18 (UNI) Congress Vice President Rahul Gandhi on Wednesday condemned the killing of RSS leader Ravinder Gosai in Ludhiana and said that the guilty should be brought to book. In a post of twitter, Rahul said, 'I strongly condemn the killing of RSS leader Ravinder Gosai in Ludhiana. Violence is unacceptable. The guilty must be brought to book.' On October 17, unknown assailants had shot dead RSS leader Ravinder Gosaini in Ludhiana. UNI AR SNU 1635