Suresh Kumar, who has already served over 14 years in jail, arguably Asia's largest, is among the seven inmates who maintain and manage the spacious and clean joint.
Dost Mohammad, 51, whose job is to keep the joint clean, is happy to see people enjoying themselves at the eatery.
Rajat Singh, another customer, wrote in the feedback book that he was amazed by the humble and cooperative staff.
Dev Gulati, a customer, said he was very impressed by the service at the joint.
The eatery, apart from serving delicious food, also showcases various other skills of prison inmates in the form of artworks that adorn its walls, and the artistically carved furniture.
The food court, apart from giving the inmates a chance to meet and offer their expertise to the world outside the boundaries of the prison complex, has also given a new lease of life to the inmates.