Palitana/ Rajkot: Shock and panic gripped pilgrim town of Palitana when four pilgrims reportedly died of a heat stroke on Sunday morning. The pilgrims were among thousands attending a five-day Jain religion function, Suripat Rajat Jayanti Mahotsav, at the foothills of Shetrunji hills at this Jain pilgrimage in Bhavnagar district.