Just few days back, IMD issued a warning on increased intensity of heat waves with an "orange" alert for select states of Rajasthan, Madhya Pradesh and parts of Maharashtra, predicting a rise of another two degrees Celsius in northwest region. On April 27, temperatues in Rajasthan soared above 45 degree-mark in seven of its districts.
Heat waves generally occur in the months from March to June, with some exceptions in July. It covers the most parts of India - including the states of Punjab, Haryana, Delhi, Uttar Pradesh, Bihar, Jharkhand, West Bengal, Odisha, Madhya Pradesh, Rajasthan, Gujarat, parts of Maharashtra