Multiple choice general knowledge MRF tyres... Movement for Rights and Freedoms Madras Rubber Factory Markov random field Myogenic regulatory factor Reveal answer Fill a bubble to check yourself B Correct answer Explanation Option B is correct. MRF stands for Madras Rubber Factory, a major Indian tire manufacturing company founded in 1946. It was originally based in Madras (now Chennai), Tamil Nadu. Options A, C, and D are unrelated acronyms.