• Advocate & Solicitor, High Court of Malaya (1997)
• Member of the Malaysian Bar (1997)
• Member of the Kuala Lumpur Bar (1997)

• Bahasa Malaysia
• English

• Law and Practice of Construction Law in Malaysia (2021) (Sweet & Maxwell) – Co-author, Construction Court chapter
• Veerinder on Taxation (6th Edition, 2022) (Wolters Kluwer) – Co-author 
• Bullen & Leake & Jacob’s Malaysian Precedents of Pleadings (3rd Edition, 2023) (Sweet & Maxwell) – Co-author, Judicial Review chapter 
• Malaysian Civil Procedure 2024 | (Malaysian White Book) (Sweet & Maxwell) – Contributing Editor

• Chambers Asia-Pacific (2020 – 2025) – Ranked for Dispute Resolution
• Lawyer Monthly Magazine, UK – Malaysian Arbitration Lawyer of the Year award for (2023 & 2024)
• AsiaLaw (2017) – Market-leading Lawyer for Competition & Antitrust
• AsiaLaw (2016) – Leading Lawyer for Competition & Antitrust, Tax
• Legal 500 (2014) – Recommended Lawyer for Dispute Resolution

• Sudhar has been recognised in legal directories as:
  • “a formidable opponent”
  • “a very steady counsel and detailed lawyer”
  • “extremely knowledgeable”
• He is praised for his ability to “master and simplify complex facts and legal principles.”
  (Chambers Asia Pacific)
• Clients commend his commercial acumen and commitment to client service. Client testimonials include:
  • “Sudhar combines strong legal knowledge with sound commercial acumen. He is proactive, solution-oriented, and consistently delivers under pressure.”
  • “He balances strong advocacy with clear and objective advice… and is unwaveringly responsive and efficient.”
  • “I am personally impressed with Sudhar’s responsiveness, attention to detail and problem-solving abilities, as well as his willingness to go the extra mile for clients.”
  • “Sudhar Thillainathan is very experienced and always a valued add to any legal team. He is meticulous without being bogged down with processes and red tape. Always willing to listen to counterpoints and opposing views and skilful in managing critical discourses.”
  • “We engaged Sudhar Thillainathan and his team for an expert opinion on Malaysian law in an arbitration. They work well and quickly. It was a pleasure working with them.”

Client Testimonials

• Sudhar and his team have been supporting Austin in a litigation suit in Malaysia for the past three years. The case has been complex, and we have found the team to be insightful, diligent and strategic in their approach. In particular, they have worked very well with us as International (American) clients. We have collaborated well with the team in working through the complexities of the case and have come to trust their insights and perspectives. We strongly endorse the team.
• We have used Sudhar and his team as our litigation counsel in Malaysia to resolve significant disputes involving substantial sums. They have been unwaveringly responsive, candid, and efficient in ensuring that we are appropriately represented. We always appreciate when our counsel advocates vigorously on our behalf, but this has to be balanced with counsel that is willing to provide objective and timely advice on the challenges associated with the matters at hand. Sudhar has been an effective advocate in this regard and we look forward to continuing our relationship.
• My experience with Sudharsanan Thillainathan and Dawn Wong was excellent through and through. They were professional, strategic and calm in the turmoil we were going through. It was a complicated case. They know their craft and walked the extra mile for us. I also appreciated working with people that care for you on a personal level instead of just handling you as a case. I would highly recommend them – you are in good hands.
• Our firm’s legal cases have been well taken care of by Sudhar, Tania and their team since 2018 and we have full confidence that will continue to do so in protecting our interest as well as doing their very best to win the cases/suits for us. They are very friendly which resulted in a good client relationship which is very important and crucial for court proceedings as the flow of ideas and discussions will be accumulated into good defence for the cases. Most importantly, they put in their greatest effort in understanding the case and come up with a good case structure to help the client to win the legal suit. Besides, they are also very willing to provide their advice & extend their assistance without hesitation in other matter as well.
• Sudharsanan Thillainathan and Dawn Wong combines strong legal knowledge with sound commercial acumen. They take a proactive approach to finding solutions and are fully committed to achieving the best possible outcome for the client. They are superb at delivering under pressure and punch well above their weight.
• Sudharsanan Thillainathan and Tania Edward assisted with various complex Malaysian tax law disputes with the tax authorities and opinion in tax legislation interpretations. Their consistently good technical knowledge, interpersonal skill, and highest standards of work ethics and professionalism are the key factors which drove us to work closely with them for our clients’ tax affairs. They are really committed, engaging full time with the clients and us to ensure that the case is presented well. Besides, they also have broad experience in other civil litigations matters which make the firm a much-preferred choice for dispute related matters.
• Sudhar & Tania bring a high level of dedication, professionalism, and legal expertise to the table. They are pragmatic, highly efficient and effective in their approach to problem-solving. Tania Edward as Partner is enthusiastic and always goes the extra mile for clients.

Collated independently by Legal 500 research team

• ‘It is always a pleasure working with Sudhar and team. Their lawyers possess a diverse set of experiences and expertise, and its strength includes being able to combine its lawyers’ skill sets and experience to provide seamless legal advice.’
• ‘The team is experienced, proactive, and detailed.’
• ‘Mr Sudharsanan Thillainathan is conscientious and approachable.’
• ‘Very hard-working set. Knowledgeable. Collaborate well with other firms. Deep bench.’
• ‘Sudharsanan Thillainathan is exceptional. Very knowledgeable. Always prepared. Client is always front and center.’
• ‘Very knowledgeable on the law, very good working relationship with clients and excellent stakeholder management.’
• ‘Very proactive and ahead of the curve regarding the work i.e., good anticipation of what counter parties may initiate or counter.’

Collated Independently by Chambers Asia-Pacific

• “Sudhar is a highly experienced and highly recommended counsel.”
• “Sudharsanan is someone I have no hesitation in recommending.”