Onyx's members regularly appear in and advise on a broad spectrum of civil, commercial, regulatory, and personal law matters, including:

ARBITRATION

We represent clients in complex domestic and international arbitrations; and assist in navigating every stage of the arbitral process- from invocation of arbitration, interim reliefs, evidentiary hearings, final hearings, enforcement and subsequent challenges (if any) in courts. We also take up mandates as arbitrators and assist in mediation and pre- arbitral negotiations.

AVIATION DISPUTES

We represent airlines, airport operators, logistics providers, and aviation personnel in regulatory and contractual disputes arising under domestic aviation laws. Our experience spans matters relating to FTEAs, aircraft leasing, maintenance agreements and ground handling contracts.

CIVIL LITIGATION

We handle a broad spectrum of civil disputes before courts across Delhi and India, including suits for injunction, damages, breach of confidence, specific performance, partition, property disputes, and contractual claims. With two of our partners being Advocates-on-Record before the Supreme Court of India, we are uniquely placed to take litigation from trial courts all the way to the apex court.

CONSUMER PROTECTION

We advise individual consumers and corporate clients in disputes before Consumer Commissions at all levels. We have specific expertise in handling builder–buyer disputes, medical negligence, manufacturing defects, mis-selling of insurance, telecom services, and consumer finance.

CONSTRUCTION & ENGINEERING

We act for leading construction companies and EPC contractors in high-stakes arbitrations, contract enforcement, and project-related litigation. Our experience spans infrastructure sectors including oil & gas, pipelines, refineries, and industrial plants.

COMPANY LAW

We offer comprehensive advisory and litigation services on company law matters, including shareholder disputes, oppression and mismanagement claims, director liabilities, mergers and amalgamation, and regulatory compliance under the Companies Act, 2013. Our partners frequently represent clients before the NCLT, NCLAT, and the Supreme Court of India.

CRIMINAL LAW

Our team handles select white-collar and economic offences, with focus on cases involving fraud, cheating, criminal breach of trust, forgery, and misappropriation. We also act in criminal proceedings arising from corporate and contractual disputes, including real estate fraud and cheque dishonour cases. We regularly appear before the ED, PMLAT, Serious Frauds Investigation Office, CBI and the Economic Offences Wings of State Governments.

ENERGY

We advise power producers, distribution licensees, and regulatory bodies in disputes relating to tariff, compliance, and contractual performance. Our clients include distribution and generation companies, solar and wind energy developers, and companies involved in grid and transmission infrastructure. We offer particular expertise in Power Purchase Agreement (PPA) arbitrations, regulatory petitions, and appellate proceedings. We represent clients before CERC, DERC, APTEL, and the Supreme Court of India.

ENVIRONMENTAL LITIGATION

We advise and represent clients in litigation and regulatory proceedings involving environmental clearances, pollution control, hazardous waste management, and ecological impact. Our practice includes defending industrial entities in actions initiated by Pollution Control Boards, as well as filing and responding to petitions before the National Green Tribunal (NGT) and High Courts. One of our partners is empanelled as a Special Counsel for the Delhi Government for these litigations.

GENERAL CORPORATE ADVISORY AND CONTRACT DRAFTING

We assist businesses with legal advisory, governance, and contract structuring. Our services include drafting and negotiating agreements such as shareholder and joint venture contracts, service and lease agreements, employment terms, and licensing deals. We work closely with promoters, legal teams, and start-ups to align documentation with business goals and compliance.

INDIRECT TAX LITIGATION

We represent clients in complex disputes under the Goods and Services Tax (GST) regime, as well as legacy laws such as VAT, Service Tax, and Central Excise, particularly before the Supreme Court of India where challenges involve constitutionality of provisions of such laws.

INTELLECTUAL PROPERTY

We represent clients in protecting and enforcing intellectual property rights across industries such as technology, pharmaceuticals, insurance, and consumer goods. Our practice covers trademark, copyright, and patent disputes, as well as trade secrets, confidentiality breaches, and non-compete issues before civil courts, High Courts, and the Supreme Court.

INSOLVENCY & DEBT RECOVERY

We represent creditors, debtors, resolution applicants, and suspended management in proceedings under the Insolvency and Bankruptcy Code, 2016. With clients across real estate, NBFCs, and manufacturing, we offer sector-specific insight and handle matters through all stages, including appellate and Supreme Court proceedings.

MINING LAWS

We advise mining lease holders, contractors, and developers on compliance, clearances, and disputes under the Mines and Minerals (Development and Regulation) Act, 1957 and related laws. Our work includes litigation on lease renewals, royalty assessments, and mining plan approvals before authorities, tribunals, and High Courts, along with guidance under forest and environmental regulations.

PROPERTY DISPUTES

We handle property disputes involving title, partition, tenancy, inheritance, and enforcement of sale agreements. Our clients include individuals, HUFs, and real estate investors, with particular expertise in joint family property and builder–allottee conflicts. We appear before civil courts, High Courts, and the Supreme Court, combining legal precision with practical resolution strategies.

PUBLIC LAW REMEDIES

We undertake constitutional and public law litigation, including writ petitions under Articles 226 and 32 of the Constitution of India, challenging administrative actions, statutory non- compliance, and fundamental rights violations. With two Advocates-on-Record on our team, we frequently represent clients in Writs and PIL matters before the Supreme Court and High Courts across India. Our clients include businesses, professionals, and civil society actors seeking judicial intervention in governance-related issues.

SERVICE LAW

We advise and represent employees, public servants, and institutions in matters concerning recruitment, dismissal, service conditions, and disciplinary actions. With experience across PSUs, banks, and government bodies, we appear before CAT, High Courts, and the Supreme Court in service-related litigation and advisory.