This is a photo of the vomit of a leopard which has been eating some grass. Several carnivores often eat grass to aid digestion or something. I got clearer photos of this later in the day as I was climbing back down but by then the saliva had dried. Which is what makes this photo very interesting. The huge blobs of wet saliva you see in the photo indicate that the leopard was here very recently.
Though at the time I estimated that we had missed the leopard by a couple of hours, analyzing the photo now, I feel that the time lapse was much much lesser!! The false sense of security we had definitely did help us climb as we were out of breath by this time even without any fear of the leopard.