Hello student ,

No , You cannot apply for DNB CET entrance exam after internship  . As you know DNB CET ( Diplomate National Board Centralized Entrance Test ) is a national qualifying exam for admission in medical / dental PG courses offered by various government and private college of INDIA is  conducted by National Board of Examination ( NBE ) and for this exam you must have a degree of MBBS or a provisional MBBS pass degree recognized by a medical council of India and must possess permanent / provisional registration certificate of MBBS qulafication issued by medical council of India .

Hope you find this helpful .