For Indian farmer Lalmuankimi Bawitlung, selling her annual orange harvest is often a race against time to beat the heat.

The 38-year-old, who owns a small plot in her village in northeastern India, threw away about a third of her 350-kilogram crop last year because the fruit became overripe or rotten, and could not be sold.

"I have always been in a hurry to dispose of my oranges at whatever price available, to prevent as much wastage as possible ... (with) the increasing heat making it worse," she said at her home in Kawnzar village in the state of Mizoram.