The Forest Department has issued guidelines for pilgrims trekking the Vellingiri hills near Coimbatore for Chithra Pounami. Pilgrims are advised to stay on designated routes, avoid carrying plastics, and pay a refundable fee for bringing water bottles. Discarding clothes in Andisunai stream is prohibited. Pilgrims should be mindful of wildlife, trek in groups, and seek medical clearance if they have certain health conditions. Bringing injured or deceased pilgrims downhill is challenging due to the rugged terrain.