Three days of extremely high rainfall may have been the biggest factor in triggering the massive floods in Assam that that have already affected 57 lakh people, forced 1.51 lakh to relief camps and left 30 people dead this month. Rainfall data shared by the Regional Meteorological Centre in Guwahati with NDTV reveals that Assam received 95 per cent more rain than normal on July 13 and 127 percent more on July 14. The excess rainfall sharply spiked on July 15 - by 224 per cent.