Hasnah begun her legal career by completing her college in the chambers of Kamaruddin Wee Kota Bharu. Upon admission to the Malaysian Bar in 2017, she was offered a position as an advocate and solicitor at Ganesa Rakan-rakan in Sungai Petani, Kedah. In 2007, she was offered position as partner and the firm changed it name to Ganesa Hasnah & Rakan-rakan. She focuses on various areas of practices such as family law, claims for personal injuries field, civil litigation as well as syariah as she is syariah lawyer for Kedah.

Our 1st June 2019, she joined P. Subbaiyah as legal Assistant. Her scope is handling bodily injury claims.