Concept:The phrase "Vasudhaiva Kutumbakam" (One Earth, One Family, One Future) is an ancient Sanskrit expression promoting global unity.
Explanation:The theme of India’s G20 presidency is directly drawn from the *Maha Upanishad*, an ancient Hindu text.
This phrase appears in Chapter 6, verses 71–72 of the *Maha Upanishad*.
It literally means "the world is one family."
India adopted this theme to highlight the need for collective global cooperation and inclusive growth.
The *Maha Upanishad* is part of the Upanishadic literature, which forms the philosophical core of Hinduism.
Other texts like the *Maha Purana*, *Rig Veda*, and *Smriti* also contain similar ideas, but the exact phrase originates from the *Maha Upanishad*.
Thus, the correct textual source is the *Maha Upanishad*, not the other options.
Answer:Option B – Maha Upanishad.
