Early in 1993, MTNL officials discovered to their horror that a phone (3018899) allotted in the name of a former communication minister had been illegally diverted to the premises of Baljit Kapoor, ex-CMD, HAL, who is also known to be a middleman in defence deals. The telephone was monitored over a period of time, the talk recorded and the person served a bill of Rs 1.8 lakh. Initially he refused to pay. But when the case was handed to the Central Bureau of Investigation, the money was finally paid up. But how could the phone continue functioning after the minister had given up the communication portfolio? That's one of MTNL's unsolved mysteries. "There was no way we could have found out how long the telephone was misused," says an officer who had handled the case.