Devotees taking holy dip in Ganga on the occasion of Paush Poornima at the ongoing Maha Kumbh Mela in Allahabad-PTI

Devotees taking holy dip in Ganga on the occasion of Paush Poornima at the ongoing Maha Kumbh Mela in Allahabad-PTI

Devotees taking holy dip in Ganga on the occasion of Paush Poornima at the ongoing Maha Kumbh Mela in Allahabad-PTI

On the first day of American President Barack Obama’s visit to India, the two most commonly used words were chemistry and optics.

January 27, 2015, was an eventful day. A few events took place almost simultaneously on this day that are likely to impact the future of India’s security and economy.