LAHORE The Indian Border Security Forces opened indiscriminate firing with sophisticated weapons at Sialkot boundary, creating terror in the entire locality, official sources said here Thursday. Rangers have recorded their protest to the Indian BSF for causing unrest in the area. 'Indian BSF resorted to firing after midnight that continued for no less than half an hour. The BSF stopped the fire after Pakistan Rangers retaliated swiftly, said Rangers spok-esman in Shakargarh Sector.