Additional Sessional Judge Sandeep Yadav awarded the death penalty to Ravi Kapoor and Amit Shukla, while the third accused, Baljeet Malik was sentenced to life in prison.
The judge also observed that gruesome crimes against women were on the rise and any leniency to the criminals would send a wrong message to society.
"The offence was committed in a brutal, cold blooded and cruel manner. The victim was helpless and remained in captivity for hours and the convicts brutally mauled her to death. It was an uncivilised act done in a barbaric manner.
The death penalty came after Delhi Police released a statement saying, that the accused killed her for "pleasure" and showed no remorse.
Earlier additional Sessions Judge Sandeep Yadav reserved the order on sentence after the arguments concluded and a pre-sentencing report (PSR) was submitted by probationary officer.
28-year-old Jigisha, working as an operations manager in a management consultancy firm, was abducted and killed on March 18, 2009 after she was dropped by her office cab around 0400 hours near her home in Vasant Vihar area of South Delhi.
Her body was recovered three days later from a place near Surajkund in Haryana, police had said.