Meanwhile, the case has been transferred to the crime branch of the Delhi Police for further investigation. "The case has been transferred to us (crime branch) and we've inspected the site. Hand-written letters that have been recovered suggest spiritual angle to the deaths. Further investigation will reveal more," said Alok Kumar, Police Commissioner (Crime). The house was neither ransacked, nor any precious item, including mobile phones were found missing, police said.
Based on the facts and circumstances, a case of murder has been registered at Police Station Burari. A Board of Doctors has also been constituted to conduct post-mortem.