BJP spokesperson Madhav Bhandari said here that MLM companies had cheated over 12 lakh people across the country in the last few years.
Naming certain firms, he said they claim that their products, priced very high, cure diseases, and loot people.
Bhandari also alleged that wife of a senior Congress leader was the legal adviser of one of these firms.
Chief Minister Fadnavis had assured inquiry against such firms, Bhandari said, adding that Fadnavis had also said that if needed, the state government will take the help of CBI.