नेड् वशि कृति

The augment इट् is not added to a कृत् affix beginning with a sonant consonant (वश् प्रत्यहार).
The वश् pratayahara is rather vague. The rule really applies to Krit affixes beginning with व, र (ल) म and न, and no कृत् affix begins with any other letter of वश् class. Thus ईशिता, इशितुम् non-vas letters get the augment, but not ईश्वरः, 3.2.175 so also दीपिता, दीपितुम् but not दीप्रम् 3.2.167 (र्) भसिता, भसितुम् but not भस्म, 3.2.75.(मनिन्) यतिता, यतितुम् but not यत्नः 3.3.90 (नङ्) The Vartika नेड् वरमनादौ कृति gives the rule in a more definite form. Of course, in the Unadi Krit-affixes, there is diversity. There we get the affix ड, for example, which of course does not take the augment, as दम् + ड = दण्डः (Unadi I.113). Why do we say कृत् affixes? Observe रुदिव, रुदिम ॥

Here by 7.2.76 the Sarvadhatuka affixes beginning with a वल् consonant take इट् augment after the roots रुद् &c; but this इट् will also be prohibited by the present sutra, if the word कृति be not read in the sutra. So that rule 7.2.76 would find scope before those affixes वलादि only which do not begin with a वश् letter; as रुदितः ॥ In some texts of Kasika the counter-example is रुरुदिम in the Perfect. This is wrong, according to Padamanjari (क्रादिनियमादेव इटः सिद्धत्वात्) because इट् always comes in the Perfect except after the root कृ &c. 7.2.13: so the counter-example from the Perfect Tense is not valid. This sutra is an exception to 7.2.35. The Krit-affixes beginning with वश् letters as given by Panini are the following: वन् (वनिप्, क्वनिप्, ङवनिप्), वर (वरच and क्वरप्), वस् (क्वसु), रु (क्रु), लुक् (क्लुकन्), मन् (मनिन्), मर (क्मरच्) न (नङ्, मन्), नज् (नजिङ्), नु (क्नु) ॥ This list will show the truth of the above vartika.