The Pakistan Maritime Security Agency on Sunday detained 43 Indian fishermen over violation of territorial sea limits, said officials.
"The Indian fishermen were illegally fishing in the territorial limits of Pakistan.," said Amin Marri, Station House Officer of Docks police station.
The fishermen have been handed over to the local police for further legal action. A case has been registered against them under the Foreigner's Act and the Fisheries Act.
The arrested fishermen will be presented in court on Monday.
The Edhi Foundation has provided food to the arrested fishermen, said a spokesperson of the foundation.
Pakistan and India frequently carry out such arrests as the maritime border in the Arabian Sea is poorly defined and many fishing boats lack the technology needed to be certain of their precise location.