तैर्मन्त्रयमाणो हि मन्त्रसिद्धिं गुप्तिं च लभते इति ॥ कZ_०१.१५.३१ ॥
tair mantrayamāṇo hi mantrasiddhiṃ guptiṃ ca labhate iti
For, by deliberating with them, he attains both successful counsel (effective decision) and secrecy—so it is said.
Mantrasiddhi (effective counsel leading to success) and gupti (secrecy).
That this is a cited opinion/position in the debate, which Kautilya may accept or reject next.