The Mumbai –III Regional Office shifted its erstwhile location at Malad (W) to the its present location at 222, Bhavishya Nidhi Bhavan, Charkop, Mumbai in August, 2003.

The region was originally a Sub Regional Office located at Malad (W), Mumbai and was operating under the aegis of Regional Office, Mumbai– I .

This region was later upgraded to Regional Office in April, 2009 with SRO, Nashik under its jurisdiction which was transferred from Regional Office, Mumbai - II, Thane.

 Since then the organization is operating as Mumbai - III.