The ending of the 1st person singular in the liṭ (Perfect Tense) optionally acts as ṇit,
The Vriddhi is optional, as अहं चकार or चकर, अहं पपाच or पपच ॥,
Adhyāya 7 · Pāda 1 · Rule 91
The ending of the 1st person singular in the liṭ (Perfect Tense) optionally acts as ṇit,
The Vriddhi is optional, as अहं चकार or चकर, अहं पपाच or पपच ॥,