A Paramara king LaksmaDeva's prasasti, says he defeated Anga and Kalinga in the east, cola and also pandya in tamraparni valley in the south , turuskas on the banks of Vamksu in the north...
It is referred by Sircar, as an imitation of Raghu's digvijaya in Raghuvamsa, while describing the Chakravarti Shetra.
He has notified the borders of the Chakravarthi Shetra, with out mentioning the other countries in between the borders ( most of the accounts )...
Can't sure the rest details about the other countries came into conflict with the kings, who are claiming as the Supreme lord of Bharatha Varsha or the Earth, by stating their victories against the countries in the four directions...
These are, conventional wordings of the poets of earlier days, who simply mentioned the border tracts only To denote their masters as the supreme lord.
Sircar has referered no. of victorious campaigns of ancient kings stating the four directional victories....
Some Medieval kings Records are also bears the same...
Yes, you are correct, hence we must be very careful when we try to establish a theory taking a literary work into account. Neither these works are historical accounts nor the author claim so. So when we seek history from these, proper care must be taken. For example, Raghuvamsha is not a historical account of those kings, however Raj-Tarangani is such an account and the author of the latter work also claims for it.
What is kalidasa's date ?The Bitta Medallion as described by Ananda Coomaraswamy is 187 BC.Aswagosha who belongs to 1 century AD takes descriptions entirely out of Kalidasa'sepics.Scholars before the medallion discovery claimed that Kalidasa had copied fromAswagosha.Now it is the reverse case.They claim Kalidasa is an original poet and Aswagosha is more a philosopher hencehe may have taken it from Kalidasa.Defineltely the Cholas are not there in his time.As far as Pandyas are concerned, Valmiki mentions them in his Ramayana. Kalidasa's Raghuvamsa may not be historical document but it is valid as far as the chakravarti areas are covered totally.Nay he goes beyond the chakravarti kshetras.He describes the victory of Persia and China !!!what is missing is Raghu does not cross the sea for his conquests. Regards,S.KarthikVandemataram