Bengaluru, April 21 -- Former director general of Karnataka police, Om Prakash, was found dead with stab wounds at his Bengaluru residence on Sunday, officials said, adding that his wife, a key suspect in the case, has been detained for questioning.

The 68-year-old former DGP's wife, Pallavi Om Prakash, informed the police about the former's death at around 4.30pm, a senior police officer said. When officials reached the DGP's house in HSR layout, Pallavi, 61, and the couple's 37-year-old daughter refused to open the door to the room, the officer cited above said.

"The incident happened at around 2 to 3 pm on Sunday. When police team visited spot, the wife and daughter refused to open the door," the officer said. When the police finally...