Experts of the alaṅkāra schools have discussed in various ways how a double entendre or a different meaning can be obtained through śleṣa but also through kāku. The latter is a specific intonation which can change the meaning of a whole sentence. In some cases, kāku is enough to get a completely opposite meaning. European-trained readers might think of the well-known example of the Sybilla’s forecast “ibis redibis non peribis in bello”, which can be read with a different intonation as meaning either “You’ll go, come back and not die in war” or “You’ll go, not come back and die in war”.

Now, Uttamur T. Vīrarāghavācārya mentions kāku in a non-rhetorical context within his subcommentary on the Seśvaramīmāṃsā on Pūrva Mīmāṃsā Sūtra 1.1.3. The context is that of discussing Upavarṣa’s proposal to read PMS 1.1.3 (tasya nimittaparīṣṭiḥ “The examination of the cause of [knowing dharma]”) as in fact meaning that no examination should be done. Vīrarāghavācārya suggests that this meaning can be achieved through a kāku. This is a nice idea, since it avoids adding words to the sūtra.
However, I wonder how could one ever pronounce the sūtra in a way which suggests that no examination should be done. A clue is found in Veṅkaṭanātha’s Mīmāṃsā Pādukā 89: tannimittepariṣṭiḥ kartavyā neti vā syād iha vinigamanā sūtrakṛtkākubhedāt || 89 || “The decision between the two alternatives `an investigation should be done’ or `it should not’ given [the reading] tannimittepariṣṭiḥ is based on the different intonation by the author of the aphorism”. In other words, Upavarṣa must have suggested to read the sūtra as tasya nimittepariṣṭiḥ instead of tasya nimittapariṣṭiḥ. The difference between the affermative form and the negative one (tasya nimitte pariṣṭiḥ and tasya nimitte ‘pariṣṭiḥ respectively) could only be grasped through the speaker’s intonation.

The other relevant passages read as follows. Seśvaramīmāṃsā: yat tu upavarṣavṛttau “tasya nimittapariṣṭir na kartavye”ti nañam adhyāhṛtyātimahatā kleśena vyākhyānam, tad apy anena nirastam. “Upavarṣa’s gloss supplies (adhyāhṛ-) a negation (nañ) and reads [the aphorism], thereby making an enormous mistake, as “The examination (pariṣṭi) of the condition for it (dharma) should not be done.” This (reading) too has been refuted by the [above argument].”