August 23 – National Space Day
▪ 2025 Theme: “From Aryabhata to Gaganyaan: Ancient Wisdom Boundless Possibilities.”
August 22 – Chennai Day
This is celebrated every year on August 22, which is the widely accepted date when East India Company factors Andrew Cogan and Francis Day purchased the village of Madraspatnam or Chennapatnam from Damarla Venkatadri Nayakar, who was the Viceroy of the Vijayanagara Empire, on August 22, 1639.
