Great! It has become so easy....The frequency list output for Arthashaastra ...
Word Frequency ca (ind) 498 vā (ind) 225 tad (pron) 218 iti (ind) 185 kṛ (8. Ā.) 129 na (ind) 96 rājan (m) 86 artha (mn) 85 etad (pron) 77 yad (pron) 72 daṇḍa (mn) 72 karman (n) 68 idam (pron) 64 hi (ind) 62 sarva (pron) 57 kāray (10. Ā.) 52 para (pron) 51 yoga (m) 48 yuj (4. P.) 47 agni (m) 46 tva (n) 40 eka (pron) 39 tri (nr) 37 puruṣa (m) 37 tasmāt (ind) 36 anya (pron) 36 bhāga (m) 35 dravya (n) 34 mantra (mn) 33 sthāna (n) 33 sva (adj) 33 kārya (n) 33 hastin (m) 32 eva (ind) 32 mūla (mn) 31 vyaya (m) 31 api (ind) 31 putra (m) 30 bhū (1. Ā.) 29 amātya (m) 29 cūrṇa (mn) 29 dā (1. Ā.) 29 mantrin (m) 28 deśa (m) 28 udaka (n) 27 tu (ind) 27 viṣa (n) 26 sidh (4. Ā.) 26 yathā (ind) 25 vid (1. P.) 25