Swapna began her career with the Bharathi Raja-directed Kamal Haasan-starring "Tik Tik Tik"(1981) and thereafter acted in several Tamil/Telugu/Malayalam language movies. She also appeared occasionally in Bollywood films like Teri Meherbaaniyan, Dak Bangla, Hukumat, Izzatdar,Janam Se Pehle and others. She guest starred in Aditya Pancholi-starrer Qatil (1988). She quit the film industry after her marriage in 1993 and is now actively involved with her husband, Raman Khanna in an event management company called Sangini Entertainment that organises and manages Bollywood and Indian classical dance events abroad. Some of their shows include "Shaam-E-Rangeen" and "DreamGirls Of Bollywood" which have been performed worldwide. Along with this she also runs a resort called "The Brook at Khanna's" which is located in Karjat, Mumbai.