The following irregularly formed participles from the causative roots may optionally take iṭ - 1. dānta 2. śānta 3. pūrṇa 4. dasta 5. spaṣṭa 6. channa and 7. jñapta,
These words are formed either from the causative base or from the primary roots दम् &c. The other forms are दमितः, शमितः, पूरितः, दासितः, स्पाशितः, छादितः and ज्ञपितः ॥ The words दान्त &c. are formed by the luk-elision of णि (Causative), and not taking the इट् Augment. By 7.2.49 ज्ञप् optionally is सेट् and, therefore, by 7.2.15, its Participle would have been always अनिट्, hence, this sutra makes an option.,