The affix ḍhañ comes in the sense of a descendant after the word gṛṣṭi etc.,
This debars अण् and ढक् &c. Thus गार्ष्टेयः, हार्ष्टेय ॥ The word गृष्टि when it means 'a cow' will of course get the affix ढञ् by the last Sutra. The present sutra applies when it does not mean a four-footed animal, but means 'a woman who has one child only'.
1 गृष्टि, 2 हृष्टि, 3 बलि, 4 हलि, 5 विश्रि, 6 कुद्रि, 7 अजवस्ति, 8 मित्रयु ।,