New Delhi, June 14: Shiv Sena today held a demonstration in the national capital to protest the implementation of conditional access system in the metros from July 14 and urged the Prime Minister to revert the decision. Addressing party workers, Sena Delhi state president Jai Bhagwan Goyal said the decision to implement CAS would put additional burden on the middle class. "We appeal to the Prime Minister to reverse the decision or otherwise the party would have to launch an agitation against the same," he said. Bureau Report