Glad to hear that you have many Styles. Unfortunately my keyboard is S700, therefore I am waiting till someone else upload Indian styles. If I find elsewhere, surely will upload here.
You are right, it is really very difficult to find our some authentic Indian Tabla / Dholak styles, or say Taals for our YAMAHAs.
I'm having PSR S900 and surf a lot on net to find out Taals like Dadra, Kehrwa, Trital, Japtaal, Dipchandi, Rupak, etc.
I'm having some Indian style, but not working effectively, like I've seen for Korg PA-50 / PA-500 / PA-800. In Korg, you can feel very near to the original sound.
Even, I've posted my query that whether we can convert Korg Styles to our YAMAHAs, but not found any good solution. There are some convertors for it. But for it we have to be master of that... and its not my job... I play coz I like music..
Anyway, lets hope that we will find some good solutions in future.
Till that...Have a nice musical life..