On which of the following days is National Bird Day celebrated every year? 

Which of the following has become the world’s largest electrified rail system?

R. K. Sriramkumar has been awarded the Sangeetha Kalanidhi Award 2026. Which musical instrument is he associated with?

In which of the following locations have researchers discovered a new species of grasshopper belonging to the genus Conocephalus?

Which sport did India’s Asian Games gold medalist Jinson Johnson, who recently announced his retirement, compete in?