It may be noted that there was no possibility of heatwave in Navi Mumbai, Maharashtra a few days ago, and heatwave did not last, but still a dozen people were affected by the heat wave in a government program. More people died. According to the Times of India report, there were many other reasons behind the death of people in the Navi Mumbai incident, such as age, health, illness and sitting in the sun for a long time, etc. At the same time, one more thing has become clear from this incident that only the temperature does not give complete information about the effect of the weather. In view of this, the Meteorological Department has launched the heat index.