On the occasion, Chief Minister Uddhav Thackeray hoisted the national flag at Mantralaya, the administrative headquarters of the state in south Mumbai.
Thackeray paid floral tributes to the portraits of Chhatrapati Shivaji Maharaj, the Maratha king''s mother Jijamata and Dr Babasaheb Ambedkar there.
Home Minister Dilip Walse Patil, Revenue Minister Balasaheb Thorat were also present there.
Earlier, Thackeray visited Hutatma Chowk in south Mumbai and placed a wreath at the memorial to pay respects to 105 martyrs, who laid down their lives for a unified Maharashtra.
Apart from Thackeray and Walse Patil, state Chief Secretary Sitaram Kunte, Mayor Kishori Pednekar, state DGP Sanjay Pandey,Mumbai city Collector Rajiv Nivatkar and Municipal Commissioner I S Chahal were present there.
In other parts of the state, guardian ministers unfurled the tricolour at the respective district headquarters.