The deceased was identified as Dev Prathap Singh, police sources told PTI.
Mr Singh, a native of Rajasthan, was working as an accountant in the mall for the past three months.
According to police, "Singh came to the Mall at 4 am today to update some pending accounts and later went up to the terrace to have some snacks. While he was sitting on the parapet wall and having his snacks, he accidentally fell".
His parents have been informed and the body has been sent for post mortem.