2nd April is celebrated as the World Autism Awareness Day. The theme of this year is;

The UN English Language Day is observed every year on 23rd of April to celebrate multilingualism and cultural diversity as well as to promote equal use of all six official languages throughout the Organization. These are Arabic, Chinese, English, French, Russian and Spanish. For the English language, 23 April was chosen because it is the date traditionally observed as both the birthday and date of death of William Shakespeare.

World Red Cross Day (also known as Red Crescent Day) is observed every year on May 8. The 2019 theme is, '#Love'. The day is also the birthday of Henry Dunant, who had generated the Red Cross Committee of the International (ICRI) in 1863 in Switzerland, Geneva.

Former deputy election commissioner Vinod Zutshi has been appointed as special observer for Tripura. The Election Commission (EC) had postponed polling in the Tripura (East) Lok Sabha seat to the third phase on 23rd April from 18th April, due to law and order situation. He was one of the special observers appointed by the Election Commission (EC) to ascertain when the assembly elections in Jammu and Kasmir can be held.

World Aviation and Cosmonautics Day, a date to honour the first ever flight of a human in space.On April 12,1961, Soviet cosmonaut Yuri Gagarin carried out the famous flight in spacecraft Vostok 1 started from Baikonur Cosmodrome. In November 1968, the 61st General Conference of the Federation Aeronautique Internationale (FAI), known as the World Air sports Federation, decided to celebrate World Aviation and Cosmonautics Day on April 12. Many countries organize a Yuri's Night on April 12. The first Yuri's Night was celebrated on the 40th anniversary of the first manned flight into space in 2001.

World Malaria Day is an international event observed every year on 25 April, to spread awareness about malaria disease globally and to promote efforts to prevent malaria around the world. The theme of World Malaria Day 2019 is "Zero malaria starts with me". At the 60th session of the World Health Assembly, a meeting sponsored by the World Health Organisation (WHO) in 2007 proposed that Africa Malaria Day be changed to World Malaria Day to identify the existence of malaria in the countries worldwide and to bring awareness among people globally to fight against malaria disease.

International World Water Day is held annually on 22 March as a means of focusing attention on the importance of freshwater and advocating for the sustainable management of freshwater resources. The theme for World Water Day 2019 is 'Leaving no one behind,' which is the central promise of the 2030 Agenda for Sustainable Development.

The United Nations (UN) established World Tuna Day on May 2 to raise awareness about the importance of tuna and to promote more sustainable fishing practices. It was observed for the first time in 2017.

National Technology Day is observed every year on the 11th of May in India. It is a reminder of the anniversary of Shakti. The aim of the celebration is to highlight the achievements of the scientists and engineers of India in the field of science and technology. It also helps to encourage students towards science and technology field.

The World Intellectual Property Day was observed across the world on April 26, 2019 to spread awareness about the role that intellectual property rights like patents, trademarks, industrial designs and copyright play in encouraging innovation and creativity. The theme of World Intellectual Property Day 2019 was "Reach for Gold: IP and Sports".

The National Panchayati Raj Day is celebrated every year in India on 24th April. The Constitution of India recognizes Panchayats as 'Institutions of self-government'. This day marks the passing of Constitution (73rd Amendment) Act, 1992 that came into force with effect from 24 April 1993. The Amendment Act permits states to take steps to organize village panchayats and provide them with necessary powers and authority necessary to facilitate them to function as units of self-government. The first National Panchayati Raj Day was celebrated in 2010. The enactment of the 73rd Amendment Act had led a defining moment in the history of India which helped in the decentralization of political power to the grassroots level. In turn, it had led to the institutionalization of Panchayati Raj (PR) through the village, Intermediate and District level Panchayats.