A woman drives her kids, dressed up for a fancy dress competition, to their school on a moped in Chikmagalur, Karnataka on Wednesday

A woman drives her kids, dressed up for a fancy dress competition, to their school on a moped in Chikmagalur, Karnataka - PTI

A woman drives her kids, dressed up for a fancy dress competition, to their school on a moped in Chikmagalur, Karnataka - PTI

A woman drives her kids, dressed up for a fancy dress competition, to their school on a moped in Chikmagalur, Karnataka - PTI

A woman drives her kids, dressed up for a fancy dress competition, to their school on a moped in Chikmagalur, Karnataka - 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.