India approved Qdenga (TAK-003), a tetravalent dengue vaccine that protects against all four dengue virus types, for people aged 4 to 60 years.
Income Tax Department launched ‘Kar Saathi’, an Artificial Intelligence based chatbot platform to help with tax filing, compliance, e-verification, and grievance support.
Min Aung Hlaing has been elected as the President of Myanmar by Parliament.
Sudarshan Pattnaik has been appointed as the Brand Ambassador for India Census 2027 by the Government of India.
Three Panchayats of Tripura won top honours in Deen Dayal Upadhyay and Nanaji Deshmukh Panchayat Satat Vikas Puraskar 2025, with Sepahijala (best District Panchayat), Kanchabari (Health-Friendly category – 1st), and Baikunthapur (Women-Friendly category – 3rd).
Vice President C. P. Radhakrishnan released “Tides of Time” by Sudha Murty, explaining 58 murals in Samvidhan Sadan as India’s civilisational symbols.
NATO Day is observed on April 4 annually, marking the founding of the North Atlantic Treaty Organization through the signing of the North Atlantic Treaty on April 4, 1949.
National Maritime Day is celebrated on April 5, 2026, to mark India’s maritime heritage and progress.
The theme for 2026 is “Maritime India – Empowering Progress”.
International Day of Conscience is observed on April 5 every year to promote peace and ethical values.
The theme for 2026 is "Together for Peace: From Conscience to Collective Action".