SRINAGAR: Supporters of rival separatist groups on Sunday clashed with chairs and rocks in Indian-held Kashmir, injuring 12 people and four policemen, a police officer said. The scuffle broke out as Yasin Malik, chief of the Jammu Kashmir Liberation Front, opened a new office of his group in downtown Srinagar in the presence of nearly 3,000 supporters, said Farooq Ahmed, the police officer. Police and paramilitary forces chased away nearly two dozen youth protesters who raised pro-Pakistan slogans such as “Long Live Pakistan” and battled with JKLF supporters. Malik’s supporters chanted “We want independence” from India.