Arisaema species- Periyar, Kerala 
Arisaema tortuosum from Periyar : 3 posts by 2 authors. Attachments (1)
looks like tortuosum. Experts please confirm the Id.
You are right in Identifying it as Arisaema tortuosum . But it is a different variety known as Arisaema tortuosum var. neglectum.
The difference is this var. neglectum. has two pedatisect  leaves, where as the Var. tortuosum  has only one pinnatisect leaf.
Please refer Flora of Kolhapur district in this regard.
..Congrats for having a Nice photo.. And thanks for sharing it.!
Thanks for your detail information.
Forwarding again for Id assistance please.