The heart of the Indian capital turns into a battle zone as thousands denounce the gang- rape. Clashes between police and protesters leave many injured. Constable Subhash Chand Tomar among the injured. Some Metro stations remain shut. The victim on ventilator, her condition remains critical. Two Delhi Police officers suspended for not stopping the bus with tinted windows in which the girl was raped. Roads again blocked as protests continue. Authorities promise more measures for security of women. Prime Minister Manmohan Singh addresses the nation, calls for calm. and suggest ways to make the national capital safer for women.