Police have arrested three robbers who used to inject drugs in victims' body after committing the crime.
Police said the robbers were planning to commit robberies in a posh colony of south Delhi. Injections were also recovered from them.
"The accused have confessed that they had come to Delhi to commit robbery in a posh colony of South Delhi. The injections recovered from them were meant for drugging the victim. We have also recovered rope and adhesive tape which they were used by them to tie the victims," Ajay Chaudhry, additional CP (southeast) said.