NEW DELHI/WASHINGTON: Congress Vice President Rahul Gandhi tonight left for the US, where he will interact with global thinkers, political leaders and overseas Indians on international, economic and technology issues.Gandhi, 47, will begin his nearly two-week trip to the US with an address at the University of California, Berkeley, tomorrow on the subject 'India at 70 -- Reflections on the Path forward', where he will talk about contemporary India and the path forward for the world's largest democracy.His great grandfather Jawaharlal Nehru, India's first prime minister, delivered a speech at Berkeley in 1949."Looking forward to addressing students of University of California, Berkeley and interacting with Indian Overseas Congress members with Sam Pitroda during my visit to the US," Gandhi said on twitter.The Congress party also said on its twitter handle that, Congress Vice-President Rahul Gandhi will interact with students of UC Berkeley on Tuesday, September 12, 7 AM IST."Gandhi, during his US visit, will meet and interact with academics, researchers and intelligentsia and discuss issues like emerging technologies, including Artificial Intelligence, nano technology and bio-technology, sources said.A senior Congress leader had said earlier that the idea was to bring back knowledge and implement it at the policy level in the Congress party's vision documents."The purpose of the visit is two-fold. One is to meet interesting and global thinkers, to have a conversation on what is happening world over on economy, on technology, on opportunities, and really understand different views from experts on the global scene," technocrat Sam Pitroda, who is involved with the preparations of Gandhi's visit, told .Pitroda worked with Gandhi's father and former prime minister Rajiv Gandhi for nearly a decade to transform India's telecom sector.He said Gandhi will meet overseas Indians at an event in New York as part of an outreach by the Congress party.The Congress vice president is scheduled to visit Washington DC. He is likely to address members of the think- tank community at an event organised by the Centre for American Progress, and interact with the corporate world at another programme organised by the US-India Business Council.Gandhi may meet some members of the ruling Republican Party as well. "A lot of these meetings are going to be small and private," Pitroda said."He wants to understand more about what's happening globally and what's the global view of the situation is," he said."He is coming to meet with students and academicians and various thinking people in the US," Pitroda said.The Congress vice president has often visited the US, but this could possibly be the first time in his political career that Gandhi would hold public meetings, meet political leaders and deliver speeches in the country."You know he needs to be out, he needs to express his views. You know he has been not, may be, talking publicly about his trips. But I think, it is important that he meets a large number of people this time and also overseas Congress members," Pitroda said."Today, the view of India is one short of protected by one group of people. We need to really talk about Indian aspirations, Indian concerns about what is going on not just in India but the world over. Rise of populism is one topic I am sure will come up in the conversation," Pitroda said.He said Gandhi would interact with Silicon Valley people, where the technology, talent and Indian "brain power" is concentrated. "So, the idea is if you were to meet a lot of Silicon Valley people, it is better to talk about things in San Francisco."Gandhi will also address a gathering at the Princeton University