Kaal (death) was given the responsibility of collecting souls. Kaal agreed but was apprehensive that it would be blamed for all the grief. The Supreme Being assured Kaal that it would not be blamed as there would always be a cause behind each person’s demise.
Since then Kaal collects the souls but the blame falls on numerous other causes.
Nowadays, Kaal has been tardy and often fails to meet its targets. On such occasions, the different elements of nature assist it. Water, fire, winds and Earth helps Kaal in large scale reaping of souls.
The Kedar valley in Uttara-khand, India was recently deluged with heavy rains and floods that claimed more than a thousand life and left thousands stranded. http://tehelkanews.com/Story.uttarakhand_deluge_may_have_engulfed_5000_people.20847.html
No wonder Varuna the god of water is classified as an Asura (demon) in Rig Veda yet worshiped like a Sura (God)
Thank you Alastair.