Thank you very very much Vijayasankar ji for providing clarity and information.
I will go with the better candidate among two -
பெரும்பஞ்சட்டி perumpanjatti, though perum bandali is the one which is listed in quite a few papers / articles. That of course gets carried by just copy-paste !!
Bharathi ji, thank you very much too for the attempt of names in native script.
Also thanks Vijayasankar ji, for the scientific name update - quite a recent update, as much as 24 Sep 2018 in Catalog of Life. Will revise my notes accordingly.