Films Aashayein was directed by the national award-winning director
Nagesh Kukunoor. Sehgal was cast opposite
John Abraham, who played the dying protagonist. Sehgal played the pillar of strength and the only ray of hope in the dying man's life. In Rahat Kazmi's
Mantostaan, based on the works of celebrated writer
Saadat Hasan Manto, she played the leading role. Sonal plays the lead role in and has also co written the screenplay of "Lihaaf", along with director Rahat Kazmi. The film based on Ismat Chugtai's story of the same name, is produced by Oscar Winner Marc Baschet. Sonal turned Producer with MANNY 2020. The feature film directed by Latvian director Dace Puce, was written and produced by Sehgal who also played the leading role. In 2025 she Wrote and Executive Produced THE GREAT DEPARTURE in which she starred opposite Xavier Samuel (BLONDE, 2022). The film released theatrically in France to a great response from audience and crtics
Television She began her career with theatre and television. She had a pivotal role in the celebrated theater scriptwriter/director Mahesh Dattani's play
Mad about Money. She also had lead roles in the television serials
Saara Akaash and
Hotel Kingston, in which she played diverse characters. These programs aired back-to-back from 2005 to 2007. In Saara Akash, she played an undercover spy on the Indian Air force base who lost her heart to a pilot. The audience loved to hate her and then fell in love with her. In Hotel Kingston, she played a spoiled brat who inherited her father's hotel and managed it incompetently. The character was a brat with a golden heart who the audience adored. ==Filmography==