HYDERABAD: Pir Sahib Pagaro, President of the Pakistan Muslim League, said today [May 5] that he did not believe in violence and would strive to change the Government through constitutional means. Addressing the Sind Zonal Muslim League workers ... Pir Sahib regretted that lawlessness had considerably increased in the country and expenditure on administration had also gone up unnecessarily. Pir Sahib said the meeting of the UDF scheduled for May 17 will now be held at Peshawar... . He said in this meeting it would be decided whether the Opposition should participate in the next Budget session of the National Assembly or not. Staff correspondent [Meanwhile as reported by news agencies from Moscow,] the Soviet Union yesterday [May 4] reiterated its backing for a Palestinian State, in a joint communique issued here ... at the end of a visit by Palestine Liberation Organisation (PLO) Chairman Yasser Arafat. ... The communique affirmed Soviet support for the Arab struggle to obtain restitution of Arab lands occupied by Israel in 1967, and for achievement of the national rights of the Arab people of Palestine, including the right to form a national state, the official news agency Tass said.