The dummy execution of the four death row convicts of 2012 Delhi gangrape case was successfully performed in Delhi's Tihar Jail on Monday, jail officials said. Mukesh (32), Pawan Gupta (25), Vinay Sharma (26) and Akshay Kumar Singh (31) are to be hanged till death in the case. The hanging is to take place on February 1 at 6 am.