Enrolled as an Advocate in the year 1984 she practiced as an advocate conducting cases on Civil, Criminal, Constitutional and Service Law. She was appointed as Standing Counsel (Criminal) for the Govt. of NCT Delhi in the year 2001 till 22nd October 2009 during which period she conducted cases like the 2001 attack on the Indian Parliament the 2000 terrorist attack on Red Fort in Delhi, Jessica Lal murder case, Naina Sahani murder case, Nitish Katara murder case. As Special Counsel CBI conducted cases such as Naval War Room leak case etc. Appointed as a Judge of Delhi High Court on 23rd October 2009 she delivered numerous decision on Criminal Law, Civil Law, Commercial Law including intellectual property and Arbitration and authored landmark judgements in every field of law. For her significant contribution in the field of IPR she was the first woman judge in India to be recognized as one of the 50 most influential persons in IP Law in the world in the year 2020. She is the only non-political lawyer in the country whose profile was included in 8th Standard curriculum in NCERT Text Book. In the year 2010, She was the first Judge to be invited as a Resource Reason at Lal Bahadur Shashtri National Academy of Administration; Mussoorie for a Seminar organized for the Senior IAS/ IPS officers on Terrorism. She has played a significant role in rehabilitation of destitute woman and children. After her retirement as a Judge of the Delhi High Court on 27th June 2026, she is conducting arbitrations including International Arbitrations and practicing in the Supreme Court and other High Courts as a Senior Advocate.