An officer of the 1981 IPS batch, Maria's appointment to the sensitive post comes 15 days after the voluntary retirement of former city police chief Satyapal Singh.
Maria's appointment followed a late night meeting between Chief Minister Prithviraj Chavan and Home Minister R.R. Patil, an official said.
Rakesh Maria comes with a rich experience of handling anti-terror operations.
Singh had tendered his resignation from the post and sought voluntary retirement as he plans to contest the ensuing Lok Sabha elections.
Maria comes with a rich experience of handling anti-terror operations starting with the probes in March 1993 Mumbai serial bomb blasts, the 2003 twin terror blasts and later investigating the 26/11 terror attacks.
Besides Maria, the state government made several other senior IPS level postings.