Delhi: The investigators have recovered the knife used by Mohammad Sahil Khan to kill 16-year-old Sakshi in Shahbad Dairy area, an official said, adding that the case is now strong and they have major evidence for the prosecution in the case.

“We have recovered the knife (six-inch long) from a vacant plot near Rithala metro station on the instance of Sahil. Now we have all the evidence which will make the case strong,” said the police official privy to the investigation.

Earlier, the FIR registered by police in connection with the brutal murder of 16-year-old Sakshi by her boyfriend Sahil revealed that her father was aware about their affair.

Based on the FIR obtained by IANS, it was revealed that his daughter had been friends with Sahil for the past year.