Speaking in Hindi, Modi said there was no reason for India to lag behind any longer. "Do you believe that the country can rise again, become powerful and capable of helping other countries again," he asked to loud cheers from the crowd.
"I don't see any reason for the country to remain behind, fate has decided that it must progress," he said to wild cheers.
Organisers of the event had said Modi's address at the Allphones Arena would rival the Madison Square Garden address Sep 27 where too he had received an ecstatic welcome from an over 16,000-strong gathering of Indian diaspora.
"Overwhelmed, honoured and humbled. Will never forget this day," is how Modi tweeted later. Modi also spoke of the schemes launched by his government, including the Clean India and Make in India programmes, and invited the diaspora to join in the Swachh Bharat campaign and contribute towards building toilets in their villages back home in India.
He said that today, people, including industrialists, are participating in the Clean India mission. "I salute them."
He said that on the 150th anniversary of Mahatma Gandhi's return to India in 2019, "the least we can do for Mahatma Gandhi is have a clean India". He said it would give a fillip to tourism in the country, besides improving the lives of the poor.
"It took 28 years for an Indian PM to make the few hours journey to Australia. Now you will not have to wait 28 years," he said, referring to the shared values of democracy, and the love for cricket that India and Australia share.
Earlier, during his meeting with businesspersons in Queensland, Modi told them that Queensland can be an important partner in India's development. At the breakfast meet hosted by Queensland Premier Campbell Newman, Modi proposed that businesspersons can participate in his government's Clean Ganga programme and also suggested that India can import LNG from Queensland. He said he was pleased that Queensland will be participating in the 'Vibrant Gujarat' summit in 2015 to showcase its infrastructural capabilities and that trade delegations from Queensland have been sent to other Indian cities like New Delhi and Kolkata as well. He also met New South Wales Premier Mike Baird to discuss economic ties.
Baird later tweeted: "Meeting the man with the trillion dollar infrastructure plan, Indian PM @narendramodi." He described Modi's Sydney speech as "incredibly powerful". Modi later left for Canberra, where he will address the Australian parliament Tuesday and hold bilateral talks with Prime Minister Tony Abbott. He is among three world leaders who have been invited to address the Australian parliament, besides China's Xi Jinping and Britain's David Cameron. He will be the first Indian prime minister to address the Australian parliament.