Explanation

First Opposition Party in Pakistan was the Jinnah Awami League (AL)

Founded by Abdul Hameed Bhaswani in 1950

Dissolved on 26 March 1971

The Party Flag color is Green

The headquarters is located in Dacca 

Addition information:

Pakistan Peoples Party (founded by ZA Bhutto)

Muslim League (founded by Fatima Jinnah)

Islami Jamhori Etihad (founded by Ghulam Mustafa Jatoi)