Population seven billion: Can India feed its people?

By the end of October 2011 the United Nations will announce that the world's population has reached seven billion.

The number of people on the planet is now rising by around 80 million a year.

But how are these changes affecting people's daily lives? BBC News speaks to seven people from around the world to hear their stories.

In India, as land is split between families and the cost of farming increases, the BBC's Sanjoy Majumder asks if the country can feed its 1.2bn people.

He went to meet farmer Chandra Singh in the state of Punjab.