2 January – Anti-Hindu riots begin in Khulna, East Pakistan. They and reciprocal riots in Calcutta would fuel waves of communal violence on either side of the border over the next few months.[1][2]
11 April – A tornado in the Narail and Magura regions of Jessore District in East Pakistan destroys villages and kills as many as 500 people.[5]
29 April – Pakistan International Airlines (PIA) inaugurates regular scheduled flights from Karachi to Shanghai via Dacca and Canton using a Boeing 720B, becoming the first airline of a non-communist country to fly to the People's Republic of China.[6][7]
June
1 June – Pakistan acquires from the United States its first submarine, the PNS Ghazi.[8][9]
July
22 July – The heads of state of Iran, Pakistan and Turkey issue a joint communique from Istanbul, establishing the Regional Cooperation for Development (RCD).[10]
25 September – The Supreme Court overturns the banning of Jamaat-e-Islami on the ground that the ban, enacted without due process, violated the fundamental right of freedom of association.[3]
^Ispahani, Farahnaz (2017). Purifying the land of the pure: a history of Pakistan's religious minorities. Oxford University Press. pp. 64–65. ISBN978-0-19-062165-0.
^Yeşilbursa, Behçet Kemal (July 2009). "The Formation of RCD: Regional Cooperation for Development". Middle Eastern Studies. 45 (4): 642. doi:10.1080/00263200903009759.
^"President Ayub Opens Chittagong Press Club". Progress of the Month. 1964. p. 17. OCLC9712521.
^Eldridge, Thomas R.; Ginsburg, Susan; Hempel, Walter T. II; Kephart, Janice L.; Moore, Kelly (2004). 9/11 and Terrorist Travel(PDF). Government Publishing Office. pp. 215–216.