The Correct Answer is Shanghai Co-operation Organisation. Shanghai Cooperation Organisation (SCO)It is a permanent intergovernmental international organization.Its creation was announced on 15 June 2001 in Shanghai (China) by the Republic of Kazakhstan, the Peoples Republic of China, the Kyrgyz Republic, the Russian Federation, the Republic of Tajikistan, and the Republic of Uzbekistan.India and Pakistan joined SCO as full members on 9 June 2017 at a summit in Astana, Kazakhstan. (The Question was from the 2013 Paper hence Option 4 is Correct).Additional InformationThe BASIC group was formed as the result of an agreement signed by the four countries (Brazil, South Africa, India, and China) on 28th November 2009.BASIC is one of several groups of nations working together to fight climate change and carry out negotiations within the UNFCCC.G4The G4 nations comprising Brazil, Germany, India, and Japan are four countries that support each other's bids for permanent seats on the United Nations Security Council.BRICSBRICS is an acronym for the grouping of the worlds leading emerging economies, namely Brazil, Russia, India, China, and South Africa.The BRICS seeks to deepen, broaden and intensify cooperation within the grouping and among the individual countries for more sustainable, equitable, and mutually beneficial development.It is headquartered in Shanghai.