| Oni Sen is an Indian director, photographer, and illustrator. |
| He directed the Indian web series Asur: Welcome to Your Dark Side, released on Voot in March 2020. |
| Oni Sen, Rachna Rastogi Sen, and K. K. Muralidharan studied at the National Institute of Design in Ahmedabad, Gujarat. |
| Reports suggested that Oni and Rachna started dating during their college days. |
| Oni revealed in an interview his admiration for Bollywood actor Amitabh Bachchan and how he learned Hindi from his films as it wasn't part of his curriculum. |
| In 1994, he transitioned to making films focusing on human insights and emotions. |
| He co-founded the Electric Dreams Film Company in 2010 with Suparna Chatterjee. |
| Sen directed the advertisement for Horlicks Gold in 2011, depicting the bond between a mother and child. |
| His wife Rachna Rastogi Sen co-founded Xheight Design India in Mumbai with K. K. Muralidharan. |
| Oni has worked with brands like Nike, HP, Coca-Cola, and Amazon for advertisements. |
| In 2016, he directed the acclaimed documentary The Saints of Sin, focusing on eight women and the seven cardinal sins. |
| He spoke at a TEDx talk at Vishwakarma Institute of Technology in 2017. |
| In 2018, he briefly taught at the Mudra Institute of Communications in Ahmedabad. |
| Oni Sen occasionally smokes and enjoys traveling in his leisure time. |
| His short film 'Paro' for Hp Inc was a finalist at the 2018 Cannes’ Film Craft for Direction. |
| In April 2021, he directed the second season of the web series 'Out of Love.' |
| The second season of 'Asur' faced delays due to the pandemic but was well-received upon its release in June 2023 on JioCinema. |