The affix ṇ comes in the sense of matup after the words 1. prajñā 2. śraddhā and 3. arcā as well as the affix matup ,
As प्राज्ञः or प्रज्ञावान्, श्राद्धः or श्रद्धावान्, आर्चः or अर्चावान् ॥ The Kasika has introduced the word वृत्ति into the sutra from the vartika वृत्तेश्च ॥
Vart:- So also after वृत्ति, as वर्त्तः or वृत्तिमान् ॥,