Yes, you can specialize or get skilled in AI/ML or Data Science after MBA, as it is highly required for Advanced Business Analysis and Decision Making. As Pre requisites you only require getting clear with some of the key basics of Desciptive & Inferential Statistics, Probability, Linear Algebra as well as Hypothesis Testing, followed by Mastering in atleast One Program Language between Python/R. Today there are multiple Courses available on Udemy/Coursera/Other Platforms which you may use for Self Skilling and Education. 365 Data Science is a Very good source.