The Geeta and Sanjay Chopra kidnapping Kidnapping case ( also known as the Ranga-Billa case ) was a kidnapping Kidnapping and murder Killing crime in New Delhi in 1978 .

It involved Participation the kidnapping and the subsequent murder Killing of siblings Geeta and Sanjay by Kuljeet Singh ( alias Ranga Khus ) and Jasbir Singh ( alias Billa ) .