Reuters: Soaring temperatures have gripped parts of southern and northern India in an extreme heat wave which has killed more than 500 people and looks set to continue this week, officials said on Monday. The hottest place in India was Allahabad, a city in the northern state of Uttar Pradesh, which saw mercury rise to 47.7 degrees Celsius (117.8 Fahrenheit) on Sunday, while the capital Delhi recorded a high of 43.5C (110.3F). Most of the 539 recorded deaths have been of construction workers, the elderly...