Maharashtra chief minister Prithviraj Chavan laid a wreath at the Matryrs Memorial at the August Kranti Maidan, from where the clarion call of "Do or Die" and "Quit India" was given.
Mumbai Congress president Janardan Chandurkar administered the pledge of protecting the party's ideals of secularism and all inclusive growth to the workers.
State Congress president Manikrao Thakre said the country was facing threat from communal forces.
"We need to defeat them like the British during the Quit India movement," he said.
Maharashtra CM, in his speech emphasised on the need to have intellectual freedom, which he claimed was under threat.
"Some people are intentionally or unintentionally trying to change rules and mislead people," Chavan said.
The CM said the state government in the last 15 years had worked for up-gradation of infrastructure in urban areas including Mumbai and also agriculture sector.
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