Chandigarh, April 25 -- Three days after an arson attack at a Ram Darbar house, five men threw petrol bombs into a residential courtyard in Bapu Dham Colony, Sector 26, owing to some old rivalry in the early hours of Wednesday, police said. The house occupants were asleep when fire engulfed the courtyard. One of the assailants has been identified as Golu, a resident of Dadumajra. A case has been registered, the police said....