LAHORE, Aug 14 - Punjab University Vice Chancellor Prof Dr Khalid Mahmood said on Monday that value of freedom can be realized when ‘we look at the slave nations, and in fact, freedom is priceless’. He was addressing the flag hoisting ceremony on the occasion of Independence Day outside VC’s office here at Quaid-i-Azam Campus. On this occasion, Registrar Dr Ahmad Islam, deans, heads of various departments, faculty members, administrative officers, employees, students and children and women from PU residential colony were present. Dr Khalid Mahmood hoisted the flag outside the admin block and released pigeons. He also planted saplings on the occasion of Independence Day. In his address, Dr Khalid Mahmood paid tribute to Quaid-i-Azam Muhammad Ali Jinnah, Dr Allama Muhammad Iqbal and the leaders of the Pakistan’s Freedom Movement.