Dear Ninad, Thanks for forwarding me this useful literature.
Yes! I am also not convinced with S. penstemonoides Even there is a little ambiguity in the name. (Ref: Fl. China). *Strobilanthes penstemonoides* (Nees) T. Anderson, J. Linn. Soc., Bot. 9: 477. 1867. *Goldfussia penstemonoides* Nees in Wallich, Pl. Asiat. Rar. 3: 88. 1832 [* "pentastemonoides"*]; *G. flexuosa* Nees; *Ruellia capitata*Buchanan-Hamilton ex D. Don. Hope we'll get the correct identity soon. Regards, Ritesh.