The affix āc (ā) comes after the word dakṣiṇa in the sense of astāti , but not as a substitute of the Ablative -5th case.,
The word अदूर of the last sutra is not read into this: though the word अपञ्चम्याः governs it. Thus दक्षिणा वसति or रमणीयम्, but दक्षिणत आगतः ॥ The च् in आच् is not for the sake of accent 6.1.163 for the simple affix आ would be udatta by the general rule 3.1.3. The च् serves the purpose of differentiating this आ from other affixes in Sutra 2.3.29.,