|L. Shyamal/Creative Commons|
This news report gives no detail about the species. The likely man-eater, on a purely statistical basis, is the saltwater crocodile. Sri Lanka also has mugger crocodiles, which are far less likely to take people--but it has happened. The photo shows a mugger with a painted stork.
Sri Lanka : Government grants relief to families of Sri Lanka crocodile attack victims:
"18-year-old school girl Nuwanthika Sathsaran . . . was dragged away by the animal when she was washing her face at the bank of the river.
A week earlier the same crocodile [took] a mother of three who was washing clothes at the river."