Arthashastra
चार संचारिणो अर्ध तृतीय शताः, प्रयास वृद्ध वेतना वा ॥
Servants leading the spies, 250 or in proportion to the work done by them.
english translation
cAra saMcAriNo ardha tRtIya zatAH, prayAsa vRddha vetanA vA ॥
hk transliteration by Sanscript