In May 1988, when a Rs 26.81-crore issue of convertible debentures by ACC failed to generate enough enthusiasm from the average investor and the financial institutions, the company offered to sell the unsubscribed-to bonds in bulk to interested parties.Applicants included the Calcutta-based Swarups, promoters of Paharpur Cooling Towers; and a company called Kachaldara Trading. Smelling a rat, ACC chief Nana Palkhivala checked out Kachaldara’s antecedents. The company was a wholly-owned subsidiary of Bombay Burmah Trading, which was part of the Nusli Wadia group. Kachaldara had a paid-up capital of Rs 2 lakh, reserves of Rs 15 lakh, and had applied for ACC debentures worth Rs 7 crore! ACC rejected the offer—Palkhivala called it "a genuinely, positively benami application"—and won the subsequent court case. Meanwhile, ACC also woke up to the fact that the Swarups, by buying a large chunk of debentures, had overnight become the largest non-institutional stakeholders in ACC, owning 7.13 per cent of the company! Hectic negotiations followed, and the Tata group bought back the Swarups’ stake through a company called Sabras Investments, controlled by Tata Chemicals bossman Darbari Seth. The Swarups had bought at Rs 125, sold at Rs 201, and made a neat profit of about Rs 3 crore within a month!