Gulshan only became a professional photographer in 2017, but her output since then has been prolific. Her work has focused on subjects including Muslims in contemporary South Africa, as well as a range of issues related to plastic pollution, access to water and sanitation, safe housing, gender and healthcare.
She was the first African woman to be hired by international news agency Agence France-Presse (AFP), and her images have been featured in major publications including National Geographic, The New York Times and The Washington Post. Gulshan has also worked with non-governmental organisations such as the United Nations Population Fund. She is a National Geographic Explorer and received the HIPA Emerging Person in Photography Award in 2020.