Explanation:

Yoga is an ancient physical, mental and spiritual practice that originated in India.

• The word ‘yoga’ is derived from Sanskrit and means to join or to unite, symbolizing the union of body and consciousness.
• The idea of International Day of Yoga (IDY) was proposed by India during the opening of the 69th session of the United Nations General Assembly (UNGA), held in 2014.
• The UN proclaimed 21st June as IDY by passing a resolution in December, 2014.

The Prime Minister of India recently announced the M-Yoga App which will help in achieving ‘One World One Health’.

• The app is a collaboration between the World Health Organisation (WHO) and the Ministry of Ayurveda, Yoga & Naturopathy, Unani, Siddha and Homoeopathy (Ministry of AYUSH), Government of India.
• Thousands of candidates have been trained as yoga instructors and trainers through various skilling initiatives like the Pradhan Mantri Kaushal Vikas Yojana (PMKVY).
• PMKVY is the flagship scheme of the Ministry of Skill Development and Entrepreneurship.
• Yoga is also a part of the Fit India Movement.

Hence all statements are correct.