"An Indian national was arrested in Kilinochchi yesterday. He had videoed a military camp, road, war devastation of buildings," police spokesman Ajith Rohana said.
Rohana the 24-year-old Tamil Nadu resident had arrived in Lanka on a tourist visa.
"As he had violated the visa rules, he was handed over to the immigration authorities," he added.
Kilinochchi was the administrative center of the Tamil Tigers until January 2009, when Sri Lankan forces recaptured the city.