Ms. Kar is just one example of the many hundreds of young Indians who are increasingly taking on the challenge of setting up their own businesses. Led by new entrants into the country's technology sector, this is transforming India into the world's fourth-largest hub for start-ups, according to the Ministry of Finance's Economy Survey 2014-15. And thanks to the vast scale of India's marketplace - the country is expected to overtake China as the world's most populous country from 2028 - overseas investors are increasingly showing an interest. This is especially true in the online space, where 240 million Indians now have internet access, according to research group IMRB International. IMRB says this is the third highest in the world after China and the US, which India is expected to overtake this year.