The 13-year-old from Bayside Hills, New York, correctly spelled knaidel, a small mass of leavened dough, to win the 86th version of the competition. The bee tested brain power, composure and, for the first time, knowledge of vocabulary.
Arvind will take home 30,000 dollars (about Rs 17 lakh) in cash and prizes along with a huge, cup-shaped trophy.
He finished third in 2011 and 2012, eliminated both times on German-derived words. This year, he got two German words in the finals and nailed them both, including the winning word.
The eleven finalists advanced from a field of 281 contenders based on a combination of a performance onstage and their performance on a computerized spelling and vocabulary test.
Runnerup was another Indian-American student 13-year-old Pranav Shivashankar of Olathe, Kansas, who stumbled and was eliminated on the word "cyanophycean," a blue-green alga.