Indian-American Democrat Raja Krishnamoorthi won the Congressional election from Illinois, defeating Republican former Elmhurst Mayor Peter DiCianni.
Krishnamoorthi, 43, won the Chicago-area US House of Representatives seat, the 8th Congressional District, vacated by Tammy Duckworth who won Illinois' US Senate seat.
New Delhi-born Krishnamoorthi, a laboratory executive, has parental roots in Chennai. He was endorsed by US President Barack Obama. Raja thanked supporters in his victory speech.
Interestingly, he is the second Hindu-American to be elected to the US House of Representatives. Tulsi Gabbard, the first Hindu-American in the US Congress, is seeking her third term from Hawaii.
Krishnamoorthi had received 81,263 votes against his rivals 54,149 votes when almost 80 per cent of the votes were counted for the eighth Congressional district of Illinois. Successful in his second attempt, Krishnamoorthi is only the second India-born member of the Congress after Dalip Singh Soundh in 1950. The two other Indian-Americans elected to the House of Representatives - Bobby Jindal and Dr Ami Bera - were born in the US. Bera is seeking his third consecutive term from California.
Born in New Delhi on July 19, 1973, his parents immigrated to Buffalo New York when he was three months old.
Mr Krishnamurthy currently serves as president of Sivananthan Labs and Episolar, Inc, small businesses that develop and sell products in the national security and renewable energy industries.
He is a co-founder of InSPIRE, a non-profit organisation that provides training to Illinois students and veterans in solar technology, and was formerly Vice-Chairman of the Illinois Innovation Council, whose mission is to promote innovative technologies that support economic growth and job creation in Illinois.
He is also the president of two small businesses that develop and sell products in the national security and renewable energy industries. He earned his bachelor's degree in mechanical engineering from Princeton University and graduated with honours from Harvard Law School.
In his campaign, Krishnamoorthi advocated policies to help working families, including equal pay for equal work, paid sick and maternity leave, raising the federal minimum wage, and making college more affordable. He also defended and campaigned for women's reproductive freedom.