The fishermen were arrested by Pakistan Maritime Security Agency (PMSA) yesterday but their detention was not made public.
They will be presented before a judicial magistrate tomorrow.
A spokesman for the PMSA said that the arrests came after the Indian fishermen were found fishing in Pakistani waters and did not leave despite warnings from the officials.
Earlier this month, Pakistan had released some 219 Indian fishermen as a goodwill gesture.
Both Pakistan and India often arrest fishermen from the other country for violation of their territorial waters in the Arabian Sea. These poor fishermen spent months and sometimes years in jails before released and repatriated back to their countries.
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