Kavyaprakasha 2.66

2.66

{pīno devadatto divā na bhuṅkte} ityatra ca rātribhojanaṃ na lakṣyate śrutārthāpatterarthāpattervā tasya viṣayatvāt /
{gaṅgāyāṃ ghoṣaḥ} ityatra taṭasya ghoṣādhikaraṇatvasiddhaye gaṅgāśabdaḥ svārthamarpayati ityevamādau lakṣaṇenaiṣā lakṣaṇā / ubhayarūpā ceyaṃ śuddhā / upacāreṇāmiśritatvāt /

Nor in "fat Devadatta does not eat by day" is eating at night indicated, because that is the domain of presumption from what is heard or presumption from circumstances.
In "a hamlet on the Ganges", the word "Ganges" surrenders its own meaning for the sake of establishing the bank as the locus of the hamlet; in such cases, this is indicative transfer by indication. And this [transfer], in both forms, is pure, because it is unmixed with metaphorical attribution.