Her artwork often explores climate change, contradictions between natural and industrial landscapes, and personal identities and makes use of technological and interactive elements.

[10] Her installations combine art with technology, environmental science and interactive elements to make information on climate change accessible.

Technological elements that have been used in her art includes motherboards, smartphone apps, sound, animation, video, and microwave and solar sensors.

[5][11] In addition to complex art installations, Kumar also creates animations, paintings, and interactive sculptures, integrating different media techniques and technologies.

[2][12] Kumar's short film Birth of a Brain Fly won an award for "Best Original Music" at the 2008 Cinema Mundo festival in Brazil.

[16] In 2022, she was among nineteen "outstanding practitioners in the fields of visual arts, film, literature, and music" selected as a fellow of the DAAD Artists-in-Berlin Program.