Abstract
Mergers and acquisitions (M&A) in India are not simply private matters between two companies once a deal crosses certain size thresholds, it becomes a matter of public interest, and the Competition Commission of India (CCI) must review it before the transaction is allowed to take effect. This process exists so that a merger cannot quietly reshape a market through higher prices, fewer choices for consumers, or the side lining of smaller competitors before anyone in authority gets the chance to examine it. Problems arise when companies, often eager to move quickly once a deal is agreed, begin acting as though the merger has already happened before this approval comes through. This might mean sharing sensitive pricing or customer information, coordinating business decisions, transferring management control, or in the most direct cases, simply closing the deal early. This premature behaviour is known as "gun-jumping," and Indian law treats it as a serious compliance failure rather than a minor technicality. This paper sets out, in plain language, what gun-jumping means under Indian competition law, why the rule exists, the two different ways it can occur, how the CCI has identified and punished it in real cases, and how the Competition (Amendment) Act, 2023 has reshaped the landscape by introducing new thresholds and clarifying long-standing grey areas. The aim is to make the subject accessible even to readers without a legal or corporate background.