The Karnataka State Electricity Board signed a power purchase agreement with an American company, Cogentrix Energy, in 1992 to build a 1000 MW thermal power plant in Mangalore. Issues emerged regarding violations of state government orders in the agreements signed. A writ petition was filed seeking an investigation into allegations of wrongdoing. The state high court ordered a CBI enquiry, but the supreme court stayed this order, finding that a criminal investigation cannot be ordered based merely on conjecture without evidence of a known crime or reasonable suspicion. The supreme court set aside the high court's order.