Kirtee Kapoor, who was born in Bangalore, was a partner in the law firm Davis Polk, The Mercury News reported.
Kapoor, who lived in Menlo Park city, was killed by a southbound Caltrain on Monday at the Watkins Avenue crossing in Atherton town, the San Mateo County Coroner's office said.
Thomas McGovern, fellow at the coroner's office, said the death is still being investigated.
Kapoor is survived by his wife and daughter, the report said.
According to the website legallyindia.Com, Kapoor "inspired a generation of Indian lawyers who went abroad".
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Kapoor earned an LL.B. From the University of Delhi, a BCL from Balliol College, University of Oxford, and earned an LLM at New York University School of Law, a statement on the Davis Polk website said.
"Kirtee joined Davis Polk's New York office as an associate in 1999 and over the next 18 years spent time in several of our offices advising clients on significant M&A matters and in investments and other transactions around the world. He was elected to the partnership in 2007 and moved to Hong Kong later that year. In 2015, he joined our Northern California office," the Davis Polk statement said.