One of these NRIs was Arnav Aggarwal, a 25-year-old engineer who had come all the way from London to support the party.
Arnav had been supporting the rookie Aam Aadmi Party since its very inception. It was through news and social media that he had first known about this "movement" going on in his country.
He recounts that it was the sense of patriotism that led him to support Kejriwal-led party by financial means and by creating awareness on social media to garner support for it.
The Delhi-bred lad, who moved to United Kingdom four years ago also used to make bulk phone calls to random numbers here in Delhi to seek support for the party.
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"Making the calls was difficult initially, as people would disconnect immediately thinking that it was a marketing call. However later, to my surprise, people would hook on to the calls after I said 'I am calling from the Aam Aadmi Party..." beamed Arnav.
Arnav was here to witness the moment that according to him and many is a defining moment in Indian politics.
However, unlike other staunch supporters of the party, Arnav wasn't wearing 'Gandhi topi', the quintessential AP headgear.
He wasn't over-zealous but was happy that his "little contribution" has made a mark.
"Obviously, I am elated. The Aam Aadmi Party has won many seats. I am happy about what happened, this will go down as a golden moment in the history. But my only concern is will AAP be able to deliver on the promises that they have made," said Arnav.