न क्त्वा स-इट्

We had had occasion to refer to this sutra in explaining sutra 1.2.7. The affix ktva (the actual affix being tva, the k being merely it or indicatory letter) is on the face of it a kit affix. This sutra however limits its kitness to cases where it is not set. If it is set, i.e. has before it the intermediate इ it will not be treated like a kit affix. Thus in कृत्वा, हुत्वा, the affix त्वा is added directly to the root कृ 'to do' and हु 'to sacrifice,' without an intermediate इ and therefore the root has not been gunated, the affix here being kit. But in स्वेदित्वा, देवित्वा, वर्त्तित्वा, from स्विद्, दिव् and वृत् 'to sweat,' 'to shine,' 'to be,' the affix is not kit, because there is an intermediate इ before त्वा and the root has been consequently gunated.

Of course this sutra relates to क्त्वा ktva only. Other affixes though having an intermediate इ will be treated as kit, if they have an indicatory क्. Thus the affix क्तिन् 3.3.94 by which feminine nouns are formed from roots is a कित् affix. This affix when सेट्, will remain कित्, as नि + ग्रह् + इट् + क्तिन् = नि + गृह् + इ + ति 6.1.16 = निगृहीतिः 7.2.37. Here there is samprasarana by treating klin as kit. So also in उपस्निहितिः and निकुचितिः there is no guna. After ग्रह् &c., the affix क्तिन् takes the augment इट् by a Vartika under sutra 7.2.9 which see.,