The national motto of India ‘Satyameva Jayate’, inscribed below the Emblem of India, is taken from

Correct option is D

The correct answer is (d) Mundaka Upanishad 
Explanation:
· The national motto of India, 'Satyameva Jayate' (meaning "Truth Alone Triumphs"), is taken from a mantra in the Mundaka Upanishad.
· The phrase is inscribed in the Devanagari script below the national emblem, which is an adaptation of the Lion Capital of Ashoka at Sarnath.
· This motto was adopted on January 26, 1950, the day India became a Republic.
· The Mundaka Upanishad is an ancient Sanskrit text and is part of the Atharva Veda. 
Information Booster:
· The full verse from the Mundaka Upanishad (3.1.6) is: "Satyameva Jayate Nanrtam Satyena Pantha Vitato Devayanah. Yenakramanttyrsayo Hyaptakama Yatra Tat Satyasya Paramam Nidhanam."
· The translation of the full verse is: "Truth alone triumphs, not untruth. By truth, the path to the divine is extended, by which the sages whose desires are completely fulfilled, reach the supreme abode of Truth."
· The motto is also featured on one side of all Indian currency and national documents. 
Additional Knowledge: (a) Katha Upanishad
· The Katha Upanishad is one of the primary Upanishads but is embedded in the Krishna Yajurveda.
· It contains the philosophical dialogue between the young Nachiketa and the god of death, Yama. 
(b) Chandogya Upanishad
· The Chandogya Upanishad is a Sanskrit text embedded in the Sama Veda.
· It is one of the oldest Upanishads and is known for the Mahavakya "Tat Tvam Asi" (That thou art). 
(c) Aitareya Upanishad
· The Aitareya Upanishad is part of the Rigveda.
· It deals with the creation of the universe and the nature of the self (Atman).