Assistant Police Inspector (API) Ashwini Bidre (37) went missing from Kalamboli area of Navi Mumbai last April.
Her family members lodged a complaint against Abhay Kurundkar, who is posted as Police Inspector, Thane (rural), with Kalamboli police station, the Navi Mumbai Police said in a press note today.
Her family suspected that she was kidnapped and killed.
Bidre's family approached the Bombay High Court as the police failed to trace her.
On the orders of the HC, the Kalamboli Police today arrested Kurundkar.
More From This Section
He has been booked under sections 364 (kidnapping or abducting in order to murder), 497 (adultery) 323 (punishment for voluntarily causing hurt) and other relevant sections of the IPC, a senior official said.
Bidre, who hailed from Kolhapur in western Maharashtra, was working in the Human Rights Commission department of Navi Mumbai.
Kurundkar had met Bidre at the Sangli Training Centre.