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
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