Thank you, Mr Anjaneyalu,
It is indeed a Pteris species. Unfortunately, I couldn't collect a voucher specimen or watch their growth for more details.
I will go back to the area next year, and see if I can locate a mature plant.
Thanks,
Regards,
Hari
HARIKRISHNAN Venugopalan Nair Radhamoni
Everything will again be great and mighty
The land simple and the water bountiful
The trees gigantic and the walls very small
And in the valleys strong and multiformed,
A nation of shepherds and peasant farmers
~~~~~~~~~~~~~Rilke