India is NOT a member of which multilateral export control regime ?

Correct option is B

Missile Technology Control Regime (MTCR) -The Missile Technology Control Regime is a multilateral export control regime. It is an informal political understanding among 35 member states that seek to limit the proliferation of missiles and missile technology. The regime was formed in 1987 by the G-7 industrialized countries.
India was inducted into the Missile Technology Control Regime in 2016 as the 35th member

Nuclear Suppliers Group -Established in 1975, the Nuclear Suppliers Group (NSG) is comprised of 48 states that have voluntarily agreed to coordinate their export controls to non-nuclear-weapon states. The NSG governs the transfers of civilian nuclear material and nuclear-related equipment and technology. India is not a member of the NSG because all its efforts were consistently blocked by China and some other members.

Wassenaar Arrangement -The Wassenaar Arrangement, formally established in July 1996, is a voluntary export control regime whose 42 membersexchange information on transfers of conventional weapons and dual-use goods and technologies. Through such exchanges, Wassenaar aims to promote "greater responsibility" among its members in exports of weapons and dual-use goods and to prevent "destabilizing accumulations." India was inducted to the Wassenaar Arrangement on 7 December, 2017 as the 42nd member.

Australia Group -Established in 1985, the Australia Group is a voluntary, informal, export-control arrangement through which 42 countries, as well as the European Union, coordinate their national export controls to limit the supply of chemicals and biological agents-as well as related equipment, technologies, and knowledge-to countries and nonstate entities suspected of pursuing chemical or biological weapons (CBW) capabilities. India joined the Australia Group (AG) on 19 January 2018.