The 43-day Amarnath Yatra to the holy cave shrine located in south Kashmir Himalayas is all set to begin on Thursday after a gap of three years. All arrangements have been put in place by the Shri Amarnath Shrine Board (SASB) to ensure smooth pilgrimage to the naturally formed ice-lingam at the cave shrine, officials said. Jammu and Kashmir Lieutenant Governor Manoj Sinha on Wednesday morning flagged off the first batch of pilgrims from Jammu base camp.