The heat wave prevailing in several parts of North India is expected to spread over more parts of north and central India, including Delhi, in the next five days but the conditions are likely to gradually subside during the remaining part of the month. According to the India Meteorological Department (IMD), heat wave conditions are already prevailing over parts of Rajasthan, Madhya Pradesh, Vidarbha and Telangana. <br/><br/>In its forecast IMD said, these conditions are likely to spread over to some more areas of Uttar Pradesh, Haryana, Chandigarh, Delhi, Gujarat and north Madhya Maharashtra during 17 to 21 of this month. They are likely to abate gradually during the remaining part of month. <br/><br/> The MET department has already predicted a delay of six days for the onset of monsoon this year. However, several areas of Tamil Nadu, Kerala and south interior Karnataka are expected to get a good amount of rainfall owing to a depression.