Mal: കരുനാഗപ്പള്ളി karunāgappaḷḷi.
‘Cobra Village’ Town, Kerala. From Mal: karu, ‘black’; nāgam/nāġam, ‘snake’, ‘cobra’; and paḷḷi, ‘village’, ‘hamlet’.
Karunagappalli/Karunagappally, a riverside town, is famous for its backwaters, houseboats, its boat club and its annual Vallam Kali snake boat races [Mal: vaḷḷam, ‘canoe’, ‘boat made of one trunk’; kaḷi, ‘play’, ‘game’] in August-September. Karunagappalli is also one of the most naturally radioactive town in the world [article: indiatimes.com].
For related place names see Indian Place names and Kerala place names.

Kannetty Kyal (Karunagappalli) Mahesh Mahajan