The Kerala Police on Thursday arrested a migrant labourer from here in connection with the rape and murder of a law student in April this year.
The arrested individual is said to be from Tami Nadu.
Union Health Minister J.P. Nadda had last month expressed concern over the deteriorating law and order situation in the state.
In May, the National Human Rights Commission (NHRC) took suo motu cognizance of media reports about yet another 'Nirbhaya' like rape and murder of a Dalit law student.
The 29-year-old law student was brutally raped and murdered on April 28.
Her body had at least 30 injuries, including on the private parts. Reportedly, the assault on her stomach was such that the small intestine had spilled out.