Clearly Sunil has considerable experience in the areas of healthcare law and employment.  In addition, Sunil advises on public law matters involving the contracts for provision of NHS medical and dental services and has acted in judicial review proceedings.  In relation to procurement of NHS dentistry, Sunil appeared before the National Co-operation and Competition Panel in its first appeal in 2010 and since then has been regularly instructed to advise upon procurement decisions whereby he has successfully identified manifest errors, which have resulted in his clients being awarded contracts. In September 2014, Sunil acted in respect of judicial review proceedings against NHS England and its incorporation policy, which NHS England attempted to justify on the basis of procurement law.  Nevertheless, NHS England agreed to settle the dispute and allow the incorporation.

His understanding of the rules and regulations governing the practice and business of healthcare is often called upon, especially on complex subjects. ​ Sunil is also instructed by banks in addition to healthcare providers (including those who are not healthcare professionals) who wished advice in relation to whether the regulations pertaining to dental practice were being complied with and to be provided with sound advice on due diligence. ​ He often represents professionals before their regulators, especially doctors who face inquiries that are before the Medical Practitioners' Tribunal and dentists before the General Dental Council's Professional Conduct Commitee. He leverages his medical background to provide keen insight into the intricacies governing medical and dental practice.  Sunil's record of successful outcomes have made him the advisor of choice for the most complex cases in medicine and dentistry.

In 2013, Sunil joined the award-winning innovative full service law firm, gunnercooke LLP as Partner and was responsible for the firm's offering to the healthcare sector nationally.  Nowadays, he is often sought by international clients to assist them with their provision of healthcare in the UK. Sunil was first made Partner at Halliwells LLP in 2010, where he was responsible for providing a full service offering dedicated to the dental healthcare sector. In 2011 Sunil cross-qualified as a solicitor as he was leading the dental healthcare team at the international firm, Hill Dickinson LLP. ​ In 2012, Sunil was responsible for developing the dental healthcare expertise at DWF LLP, and its delivery in Scotland as well as England & Wales.