A valādi ārdhadhātuka affix optionally takes iṭ after radh and the seven roots that follow it (divādigaṇaḥ (4th Conjugation) 94 to 91).,
As रधिता or रद्धा; नंष्टा, (VII. I. 60) नुम्) नशिता; त्रप्ता, ((VI. I. 59) अम्) तर्प्ता, तर्पिता : द्रप्ता, दर्प्ता, दर्पिता; द्रोग्धा, द्रोढा, 8.2.33 द्रोहिता; मोग्धा, मोढा, मोहिता; स्नोढा, स्नोहिता, स्नोग्धा, स्नेग्धा, स्नेढा, स्नेहिता ॥
Some hold that the रधादि roots optionally take इट् in the Perfect Tense also, because the present sutra being subsequent to 7.2.13, debars that sutra so far. Others hold that the रधादि roots will always take इट् in the Perfect, because the former rule 7.2.13 is stronger than the present, in as much as that is a prohibitory rule. So they form ररन्धिव and ररन्धिम ॥,