Sapna is recognised as a leader in this field, having recently been named by Who's Who Legal in their list of top 10 arbitration partners under 45 in Asia-Pacific. She is said to be "a top name for international arbitration in Singapore" and has been described by peers as "a charming advocate, who is well respected within the arbitration fraternity". Chambers and Partners Asia Pacific 2018 has recognized her as "tenacious in the pursuit of her clients' interests," adding that "she is very easy to get on with and always open to new ideas." She has also been recommended by Legal 500 Asia Pacific 2018 & 2017 as a "leader in India" for International Arbitration.

Sapna has managed arbitrations spanning a wide range of industries, and governed by all the main institutional rules, including the SIAC, ICC, HKIAC, SCMA, LCIA, UNCITRAL and DIAC. Qualified at the Bar of England and Wales, she practised in London, New York and Dubai, before relocating to Singapore in 2011. In 2015, she spent 6 months on secondment to Hilton's legal department in Singapore.

She has substantial advocacy experience and has represented clients in trials and applications before arbitral tribunals, the UK Civil Courts (including the Supreme Court), and the Courts of the DIFC. In addition, Sapna has several appointments as an arbitrator.

Sapna speaks and writes frequently on international arbitration issues, and is an active member of the international arbitration community. She is a member of the SIAC Users' Council and a Director of the Chartered Institute of Arbitrators' Singapore branch. She holds a degree from Oxford University and a diploma in international commercial arbitration from Queen Mary University, in which she graduated with distinction.