It implies NOTHING, except that you don't know your subject.
The description of the territory and its armament further east were explicitly mentioned as coming from specific sources; there was no implication, that is not a term needed if you knew Jack Squat about the sources.
Read:
<general comment by R. S. Tripathi, in History of Ancient India> During their progress towards the Hyphasis Alexander's troops had heard all sorts of alarming rumours that beyond it there were extensive and uninviting deserts, impetuous and unfathomable rivers, and, what was more disquieting, powerful and wealthy nations maintaining huge armies.
Tripathi cites two original sources:
<Curtius> Curtius represents Phegeus (Phegelis?), identified with Bhagala, as giving the following information to Alexander: the further bank of the Ganges was inhabited by two nations, the Gangaridae and the Prasii, whose king Agrammes kept in the field for guarding the approaches to his country 20,000 cavalry and 200,000 infantry, besides 2,000 four-horsed chariots, and what was most formidable force of all, a troop of elephants, which ran up to the number of 3,000.
<Plutarch> Similarly Plutarch says that the kings of the Gangaritai and Prasiai were reported to be waiting for him with an army of 80,000 horse and 200,000 foot, 8,000 war chariots and 6,000 fighting elephants.
For the information of those not like
@Taimoor Khan, born as latter-day Jowetts, who knew all about everything from birth, Gangaridae is an obvious derivation from Ganga, Prasii is only the nominative of Prachya, eastern.
More later:
@Kaptaan has posted, and I need to attend. Don't forget your medication.