Born in 1983 in Mumbai, Sethi completed his schooling at Sardar Patel Vidyalaya, Delhi.
[3] As Chhattisgarh correspondent for The Hindu newspaper Sethi reported extensively on Maoist insurgency in the state for two years.
[4][5] He also won the International Red Cross committee award for the best Indian print media article on humanitarian issues in 2011.
[6] In August 2012, Sethi was named The Hindu's Africa correspondent, based in Addis Ababa.
[7] Sethi's first book, A Free Man, was a non-fiction work about the life of an individual named Mohammed Ashraf, but also about Delhi and its transformation.