The affix ṭa does not come after the verb kṛ 'to make' when the following words are in composition with it - 1. śabda 'sound' 2. śloka 'verse' 3. kalaha 'quarrel' 4. gāthā 'praise' 5. vaira 'enmity' 6. cāṭu 'flattery' 7. sūtra 'thread' 8. mantra 'hymns' 9. pada 'word'.,
This prohibition relates even when the sense is that of cause, habit &c. The affix ट being prohibited, the general affix अण् takes its place. As शब्दकारः 'sounding, sonorous'; श्लोककारः 'a verse-maker'; कलहकारः 'one who foments quarrels'; गाथाकारः 'a writer of Gathas or prakritee verses'; वैरकारः 'an enemy'; चाटुकारः 'a flatterer'; सूत्रकारः 'an author of sutras'; मन्त्रकारः 'a composer of Mantras'; पदकारः 'an author of Padapatha' .,