The intensity and depth of Maha Periyava’s memory is legendary. Periyava was camping in MIT campus in Chennai and one day after his lecture, he was offering prasadam including kumkum (vermilion) to the students coming in a line.
One of the students was summoned back by the Acharya after he received the prasadam. Periyava asked him in Kannada language whether was he from Dharwad – a place north of Bangalore in Karnataka. The student replied in the affirmative. He then asked the student per chance if his name was Chandrasekhar or Chandramouli. The student with an exclamation said it was indeed Chandramouli. He also confirmed his age as 22 when he was posed with that question by the Mahaswami. Then Periyava enquired about the welfare of his parents and blessed him again. The entire dialogue was in Kannada.
Chandramouli hesitatingly informed Periyava that it was the first occasion He was seeing him and how come Periyava knew so much about him. Periyava told him that when he was camping in Dharwad about 23 years ago, a couple came to him and sought his blessings for a baby. Periyava had blessed them. When he gave the prasadam to the couple, the husband applied the kumkum in the forehead and then a small bit of it on his right shoulder in a fast moving action. Paramacharya told Chandramouli that when he did the same kind of action after receiving prasadam from him, Periyava was immediately reminded of his father's similar action. Also remembering the incident, He just added the bits and derived his age too.
See even that small insignificant motion of hand has been captured in his mental framework and recalled effortlessly after so many years.