Detailed Solution:
The correct answer is “Only 1”.
UK currently holds the Presidency of the G7 and has invited India, along with Australia, Republic of Korea and South Africa, as Guest.
The Group of Seven (G7) is an inter-governmental political forum consisting of Canada, France, Germany, Italy, Japan, the United Kingdom and the United States. Its members are the world's largest IMF-advanced economies and wealthiest liberal democracies.