Datnioides polota is the species name of the dats commonly referred to as American Tiger or Silver datnoid, so it would be the same.
However, from what I´ve read, D. polota has a pretty wide geographical distribution: India, Bangladesh, Myanmar, Thailand, Cambodia, Vietnam, Malaysia, Singapore, Indonesia and even New Guinea.
So, when advertising "D. polota from India", maybe Fugupuff wishes to highlight the differences between those D. polota and the others from the same species.
Which differences? I don´t know...