The International Tea Day is annually celebrated by tea-growing countries like India and Sri Lanka since 2005 and in December 2019, the United Nation approved the proposal to celebrate the International Tea Day put forth by the Government of India in the session of the Intergovernmental Group on Tea and designated May 21st as International Tea Day.
The United Nations General Assembly has also recognized the tea's medicinal properties as well as cultural importance. International Tea Day started in New Delhi on December 15, 2005, but a year later it was celebrated in Sri Lanka and spread from there to the world.
The United Nations has appealed to all member countries, international and regional organizations to celebrate International Tea Day on May 21 every year. India, Nepal, Bangladesh, Indonesia, Sri Lanka, Tanzania, many more countries are celebrating this day already on December 15.
According to the report released by FAO in the year 2018, world black tea production will be increased to 44 lakh tonnes by 2027 from 33.3 lakh tonnes in 2017. Green tea production is estimated to be 3.6 million tonnes, which was 17.7 million tonnes in 2017.