On a chilly Sunday morning in this quiet American suburb, IT consultant Madhu Bellam scoured a spreadsheet with contact details for over 1,500 Indian voters. He punched numbers into his phone and rang his hometown of Hyderabad, a tech hub in southern India about 8,800 miles (14,000 kilometers) away.
Bellam emigrated to the United States around two decades ago, and then renounced his Indian passport to became an American in 2011. He now runs his own tech consultancy.
But the 47-year-old, convinced that the ruling Hindu nationalist Bharatiya Janata Party (BJP) will unlock India's economic potential, is part of an army of activists seeking to propel Prime Minister Narendra Modi to a second term in next year's general election, due to be held by May.