International LABOUR DAY -The Antarrashtriya Shramik Diwas or Kamgar Din

Labour Day in India is more popularly known as May-Day. It was first celebrated in Chennai (then known as Madras) on May 1, 1923. The initiative was taken by the Labour Kisan Party Hindustan. The leader of the party, Comrade Singaravelar arranged two meetings to celebrate this occasion.
One meeting was held at the Triplicane Beach, and the other took place at the beach opposite Madras High Court.
On the meeting, Singaravelar passed a resolution which stated that the government should announce a national holiday on the May Day or Labour Day in India.  
Singaravelar's (A leader in Justice Party) resolution of announcing holiday on May Day came into effect during Anna (DMK leader and the then CM of Tamil Nadu) 
In India, Labour Day is also referred as Antarrashtriya Shramik Diwas or Kamgar Din.
Labour Day has its origins in the labour union movement in the United States. During industrialization in beginning of the 19th Century, the industrialists used to exploit the labour class and made them work up to 15 hours a day. The workers rose against this exploitation and demanded paid leaves, proper wages and breaks for the workforce.
The eight-hour day labour movement advocated eight hours for work, eight hours for recreation, and eight hours for rest. The Labour Day annually celebrates the achievements of the workers.