31-year-old Deepa Cherian, also known as Shahina, was arrested yesterday, police said.
She had allegedly handed over the SIMs to one Noushad, who was lodged in the Ernakulam sub jail, during one of her visits to the jail.
Noushad was arrested when he was found in possession of about 3000 ampules of tranquilisers. The SIMs were later handed over to Nazir.
The National Investigation Agency has begun a probe to find out the persons whom Nazir had spoken to with the SIMs, they said.
