Upasana is a Singapore Registered Patent Attorney and Chartered (UK) Patent Attorney, and has been in practice since 2003.

Upasana holds a BEng (Hons) degree in Chemical Engineering from the National University of Singapore, with a specialisation in biopharmaceutical engineering. In 2004, she completed the Graduate Certificate in Intellectual Property Law obtaining a distinction. Upasana joined the firm Lloyd Wise in 2003, which merged with Marks & Clerk at the end of 2007.

Upasana specialises in patents and registered designs, and works with multi-disciplinary clients in the fields of chemical and process engineering, biopharmaceutical engineering, pharmaceutical, food, nano and clean technology and semiconductors. She has extensive local and foreign prosecution experience. Upasana's practice includes drafting and prosecuting patent applications, as well as advising on infringement, validity and patentability issues. Her clients include SMEs, MNCs, research and academic institutions.

Upasana has been listed as an expert by Who’s Who Legal and as “one of the leading minds in pharmaceutical and technological patents.” She has also been recognised as a leading patent professional and ranked individual in the IAM Patent 1000 rankings since 2020, which considered her to be “solutions-oriented” and someone who “understands well the technical aspects of inventions and translates that well into patent language”. More recently, the 2024 edition of the rankings indicated her as being “highly sought after by SMEs, multinationals and research institutes for her first-rate drafting skills”.