There are several reasons behind the arrest of Supertech's chairman R K Arora by the Enforcement Directorate (ED) in a money-laundering case. These reasons can be summarized as follows: 1. Alleged involvement in fraudulent activities: R K Arora has been arrested on the grounds of his alleged involvement in money laundering. This suggests that he may have been involved in illicit financial transactions with the intention of disguising the origins of the money. 2. Investigation by the ED: The Enforcement Directorate, which is responsible for investigating financial crimes, has conducted an extensive inquiry into R K Arora's financial activities. The evidence collected during this investigation may have led to his arrest. 3. Violation of anti-money laundering laws: The arrest implies that R K Arora may have violated anti-money laundering laws. These laws are in place to prevent illegal money laundering activities and ensure the transparent flow of funds. 4. Impact on Supertech: R K Arora's arrest may have severe repercussions for Supertech, the real estate firm he chairs. It could lead to a loss of investor confidence, affect the company's reputation, and potentially disrupt its operations. It is important to note that the specific details and allegations surrounding R K Arora's arrest can only be accurately determined based on official statements and court proceedings.