In that case, the duty with the penalty amounted to Rs 480 million, which Nirav’s three companies paid up. The rules under which they paid the penalty were the result of a set of changes made by the customs department to make life easier for traders. But it has had the opposing effect on the diamantaire’s fortunes. One of the clauses said the department would only prosecute companies above a threshold of Rs 10 million for deliberate “mis-declaration in value”. Here, too, the companies could use an escape route. Before a prosecution is launched, the company can decide to plead guilty and pay the dues with the penalty.