Police in Bihar say a woman and her boyfriend allegedly hire a contract killer to murder her husband aboard a train. According to the reporting, investigators describe a planned attack in which the woman and her boyfriend are accused of arranging the killing while the husband was travelling. Police say they have seized mobile phones and SIM cards allegedly used in planning and carrying out the crime. The reports attribute the case details to police statements, which indicate that communication devices played a role in coordination before and during the incident. The alleged use of phones and SIM cards is presented as evidence that authorities are examining as part of their investigation. The matter is being handled through the criminal justice process, with police continuing to identify involved persons and verify the sequence of events. All accounts emphasize the same core allegations: the husband is killed on the train, and the woman and her boyfriend allegedly arrange for a contract killer, with mobile communications linked to the planning.