Arthashastra
स तूर्य घोष ध्वज पताकाभिर् व्यूह अङ्गानां संज्ञाः स्थापयेद् अङ्ग विभागे संघाते स्थाने गमने व्यावर्तने प्रहरणे च ॥
He should assign names to the divisions of the army using trumpets, battle cries, banners, and flags, whether in their distribution, assembly, encampment, marching, maneuvering, or attacking.
english translation
sa tUrya ghoSa dhvaja patAkAbhir vyUha aGgAnAM saMjJAH sthApayed aGga vibhAge saMghAte sthAne gamane vyAvartane praharaNe ca ॥
hk transliteration by Sanscript