Here is one such incident:
AGRA: A diehard fan of SP supremo Mulayam Singh Yadav in Nagla Paramsukh village, 60 km from Agra, died of shock as rumours spread on WhatsApp that his leader had died while under treatment at AIIMS in New Delhi. Harcharan Singh Yadav, 60, was at a bank on Saturday to withdraw compensation money he had received for his failed crop when someone shared the "news". He was disbelieving at first, but collapsed to the ground and died.
Seriously… how does one react to something ridiculous like that?