अमित्राटवीसंचारं च राज्ञो गृहकपोतैर्मुद्रायुक्तैर्हारयेत्धूमाग्निपरम्परया वा ॥ कZ_०२.३४.११ ॥
amitrāṭavīsaṃcāraṃ ca rājño gṛhakapotair mudrāyuktair hārayet dhūmāgniparamparayā vā
अमित्रस्य अटवीसञ्चारं राज्ञे गृहकपोतैः मुद्रायुक्तैः हारयेत्; धूमाग्निपरम्परया वा।
To authenticate origin and prevent tampering or spoofing—an early form of message integrity and sender verification.
Faster broadcasting across fixed points and less dependent on animal handling; pigeons are better for discrete point-to-point transmission.