The Pleated Inkcap mushroom, scientifically known as Parasola plicatilis, has been recorded for the first time in Arunachal Pradesh, India. Observed at an ICAR-Krishi Vigyan Kendra farm in Longding district, the delicate, short-lived mushroom was identified by local scientists. While non-edible and of no commercial value, it plays a crucial ecological role in decomposing organic matter and enhancing soil fertility. This discovery highlights Arunachal Pradesh's rich, underexplored fungal biodiversity.