Hey there

According to the official website of Indira Gandhi National Open University the three year duration Bachelor of Business Administration Retail Management is yearly based:

1st year diploma in retailing

2nd year advanced diploma in retailing

3rd year Bachelor of Business Administration retailing

After completing the 3rd year there will be a three months compulsory internship.

For more: https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.ignou.ac.in/ignou/aboutignou/school/soms/programmes/detail/290/2&ved=2ahUKEwjPl4LBibvzAhXWIbcAHZrYBPgQFnoECAUQAQ&usg=AOvVaw2UxVByyi4hF-xbCYgb084V