Nearing three decades of experience, Mustafa's practice covers the full spectrum of litigation and alternate dispute resolution. A substantial part of Mustafa's practice involves insolvency and bankruptcy law, commercial disputes, real estate laws, EPC disputes, intellectual property rights, media and entertainment laws, succession law, marine and a special focus on financial disputes and white-collar crimes. He has strategized complex contentious proceedings and is actively involved in domestic and international arbitrations. During his professional journey of nearly three decades, he has advised multi- national companies and Indian companies on several contentious issues related to IPR, real estate, insolvency and many commercial disputes, testamentary disputes and FIDIC arbitration among many others. He has been actively involved in the enforcement of foreign judgments and foreign awards.

He has been identified as one of the Super 50 Disputes Lawyers in Asia by Asian Legal Business. The Forbes India enlisted him as one of the Top Individual Lawyers in India. Both Legal 500 and Benchmark Litigation have recommended Mustafa as a key figure for disputes and insolvency matters.

He was enrolled as an Advocate in 1994 and as a Solicitor in 1996. He is admitted as a Fellow of the Singapore Institute of Arbitrators.