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The “Lucky Number” scandal: How India’s secret cement cartel finally crumbled
Samira Vishwas | March 10, 2026 1:24 AM CST

The Indian infrastructure boom has long been fueled by a massive demand for cement, but a shocking new investigation has revealed that some of the nation’s biggest players were building their empires on a foundation of collusion. A series of regulatory probes and leaked documents have exposed a sophisticated “lucky number” scheme used by a powerful cement cartel to rig bids, inflate prices, and stifle competition.

At the heart of the scandal is a complex system of price-fixing and market allocation that allowed dominant firms to maintain an iron grip on the industry. According to investigators from the Competition Commission of India (CCI), the cartel utilized a “lucky number” methodology to decide which company would win specific government and private tenders. By coordinating their bids down to the last decimal point, the companies ensured that the “chosen” winner appeared to offer the most competitive price, while the other participants intentionally submitted slightly higher “cover bids.”

The cracks in the cartel’s facade began to show during an antitrust probe into tenders issued by the Oil and Natural Gas Corporation (ONGC). Internal documents and communication logs from the 2017-18 period revealed that India Cements and several other industry giants were not competing in good faith. Instead, they were engaged in a shadow dance of bid-rigging for specialized cement used in oil well operations. These documents, which surfaced as part of a wider crackdown on corporate malpractice, provided the “smoking gun” needed to prove that the firms were sharing sensitive pricing data long before the tenders were even opened.

The fallout from these revelations has been swift and severe. Investors have reacted with alarm, causing fluctuations in the share prices of major cement manufacturers as the threat of massive fines looms. The CCI has historically taken a hard line against the cement industry, which has faced multiple accusations of cartelization over the last decade. However, the discovery of the “lucky number” system represents a new level of sophistication that suggests the industry’s problems are systemic rather than isolated incidents.

For the Indian consumer and the government’s ambitious “Gati Shakti” infrastructure projects, the implications are profound. Industry experts argue that this collusion has artificially inflated the cost of everything from national highways to affordable housing. By eliminating genuine price competition, the cartel effectively levied a “secret tax” on the Indian economy.

As the legal proceedings move forward, the spotlight is now on the corporate governance standards of India’s industrial heavyweights. Regulators are calling for more stringent oversight and whistle-blower protections to ensure that “lucky numbers” no longer determine the winners of the nation’s most critical contracts. For an industry that literally provides the building blocks of the country, the road to restoring public trust will be long and difficult.


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