Prime Minister Narendra Modi is set to inaugurate the final stretch of Mumbai Metro 3 from Acharya Atre Chowk in Worli to Cuffe Parade on September 30, Maharashtra CM Devendra Fadnavis announced on Tuesday. With the final phase set to open, commuters will be able to cover the distance between Colaba and Aarey Colony in an hour, which currently takes 2 to 2.5 hours during peak traffic time.