"My story is improbably American. I am the son of a refugee. My mother was born in Tibet and she was forced to flee her home country along with my grandparents," he said.
He said, his grandparents and his mother made their way through the Himalayas to Nepal and entered India where she grew up as a refugee.
His mother studied in a school in Mysore and later went to Delhi for college education, where she met his Punjabi father. "My (paternal) grandfather was in the Indian Army (Brig. Ajit Singh)," he said, adding that after marriage, his parents moved to the US and settled in Ohio, where he was born in 1982.
Mr Pureval said it came as a surprise to him after he won unopposed the primary last week, when he was told that he is the first Tibetan American to run for the Congress.
Because of his parental heritage, he says he is a proud Tibetan-American and Indian-American.
"They (Tibetan community) are very excited. I am connected with a lot of the community in all parts of the country through social media. They are thrilled to see me run, a Tibetan-American run for the US Congress. It is driving a lot of energy and they have been incredibly supporting of my efforts," Mr Pureval said.
"I am incredibly proud of my background, my culture and my ethnicity. I am incredibly proud that India is the biggest democracy in the world. Pride is the word that I would use (for India)," he said.
Recollecting his visit to Tibet's capital Lhasa in 1994 as a 13-year-old, Mr Pureval said Tibet obviously is a sad story. "For Tibetan people, it is hard to maintain their culture. I hope that this (him running for Congress) gives the Tibetan community the hope that the future is bright."
Considered to be a rising star in the Democratic Party, Pureval said he wants to inspire the next generation to believe in public service.
He said that one generation, my parents and my family, went from being refugees to now running for the US Congress. "That dream is at stake in this election," Pureval said.
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