India's weather department has said that parts of northern India, including capital Delhi, are likely to experience heatwaves over the weekend. The warning came after temperatures crossed 40C in some parts of Delhi on Thursday, making it one of the city's hottest days this year. The weather department has also warned of above normal temperatures in some states in central and western India, including Madhya Pradesh and Rajasthan, for the next two to three days. Summers can be deadly in India,