The world is still figuring out the man as he continues his enigmatic journey towards the first 100 days of his presidency.
Indians in countries like the United States, China, Australia, Japan, Singapore, Egypt, Israel and South Africa celebrated the day with hoisting of the national flag and singing of patriotic songs.
Do Modi's foreign visits actually serve India or they nothing more than expensive tools for domestic positioning and image-building, asks Shehzad Poonawalla.
Two US warships fired at least 50 cruise missiles at the Ash Shai'rat airfield in Homs province in western Syria, from where the US administration believes Syrian President Bashar Al-Assad fired the chemical weapons against his own people, media reports said.
"At my core I think we're going to be OK," Obama said.