Weather forecast Today India highlights: The Indian Meteorological Department has issued a red alert in six districts of Kerala, predicting extremely heavy rains in Idukki, Malappuram, Wayanad, Kannur, Ernakulam and Thrissur from July 18-20. Extremely heavy rains- over 204 mm rains in 24 hours have been forecast, an IMD bulletin said. Meanwhile, light rains and a cloud cover kept the mercury in check in the national capital on Tuesday and similar conditions are expected over the next two days as well. The Safdarjung Observatory, which provides official figures for the city, reported 29.2 mm rains till 8:30 am, the maximum in the monsoon season this year. In Bihar, Chief Minister Nitish Kumar said on Tuesday that 25 people have so far been killed in flash floods, that have affected 25.71 lakh people in 16 districts of the state.