"Advocacy is not merely a vocation—it is a discipline. Effective legal representation demands rigorous preparation, unwavering integrity, and the discipline to place the law above all else. These principles have guided every matter I have handled across two decades of practice, and they continue to define the work of Expert Legal Services."
Meet Adv. Arjun Mahajan:
- Name: Arjun Mahajan
- Designation: Founder & Managing Partner
- Connect at:
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biogrraphy & introduction
Arjun Mahajan is the Founder and Managing Partner of Expert Legal Services, a multidisciplinary law firm headquartered in Defence Colony, New Delhi. He has been recognised among India’s Top 100 Individual Lawyers by the Forbes Legal Powerlist for two consecutive years, a distinction that reflects sustained achievement in high-stakes litigation and complex legal representation at the national level.
Enrolled with the Bar Council of Delhi since 2000, Advocate Arjun Mahajan has over two decades of experience across criminal and civil litigation, corporate and commercial disputes, regulatory matters, and intellectual property law. His practice spans the full range of judicial and quasi-judicial forums, including the Supreme Court of India, High Courts across the country, the National Company Law Tribunal, the National Company Law Appellate Tribunal, the National Consumer Disputes Redressal Commission, and various specialised regulatory tribunals.
Through Expert Legal Services, Advocate Mahajan has represented individuals, companies, and institutions across diverse sectors, including the pharmaceutical, manufacturing, and financial industries. The firm has acted in matters on behalf of prominent industry participants, including Mankind Pharma, Piramal Group, and Sanofi. His approach to every matter is defined by thorough legal research, disciplined preparation, and a commitment to ethical advocacy—values that inform not only his own conduct but also the professional standards of the firm he leads.
Honors & Awards
- Forbes Legal Powerlist — Top 100 Individual Lawyers in India (Two Consecutive Years)
- Fortune Legal Excellence Award, 2026
- Over 20 years of continuous practice before the Supreme Court of India and Delhi High Court
practice areas lawyer
- Litigation & Dispute Resolution
- Corporate & Commercial Laws
- White Collar Crimes & Investigations
- Mergers & Acquisitions
- Intellectual Property — Trademark, Patent & Copyright
- Drug & Cosmetics Laws
- Criminal Law
- Real Estate Law
Notable Matters
The following describes the categories of matters that have formed a significant part of Advocate Arjun Mahajan’s litigation and advisory practice over two decades. Specific case details are not disclosed in accordance with professional obligations of confidentiality and the guidelines of the Bar Council of India.
Representation of financial creditors and corporate debtors in insolvency resolution proceedings under the Insolvency and Bankruptcy Code before the National Company Law Tribunal and NCLAT. Matters have involved large-scale corporate restructuring, resolution plans, and challenges to liquidation orders.
Representation of pharmaceutical companies in regulatory enforcement proceedings, licensing disputes under the Drugs and Cosmetics Act, and show-cause matters before the Central Drugs Standard Control Organisation and State Drug Authorities. Clients have included prominent pharmaceutical manufacturers and distributors.
Conduct of complex civil and commercial litigation before the Delhi High Court and Supreme Court of India, including suits for specific performance, injunctions in commercial disputes, and enforcement of arbitral awards involving substantial commercial interests.
Defence in criminal proceedings arising from economic offences, including matters under the Prevention of Money Laundering Act, the Companies Act, and proceedings before the Enforcement Directorate and Serious Fraud Investigation Office.
Representation before the National Consumer Disputes Redressal Commission in matters involving deficiency of service in the real estate, financial services, and healthcare sectors, including matters resulting in proceedings before the Supreme Court on appeal.