Amidst tight security arrangements a fresh batch of 1786 pilgrims today left the Jammu base camp for Amarnath yatra to pay obeisance at the cave shrine in South Kashmir. <br/><br/>According to police sources, the latest batch, comprising 1388 men, 347 women, 50 sages and other, left in a cavalcade of 53 vehicles from Bhagwati Nagar base camp this afternoon.