The Enforcement Directorate (ED) has frozen trading accounts worth about Rs 200 crore after searching 29 premises across six cities in a money laundering probe into the alleged manipulation of shares of R M Drip and Sprinklers Systems Ltd and R&B Denims Ltd, according to a press release issued by the agency. The action follows the Securities and Exchange Board of India’s (SEBI’s) crackdown on suspected stock market manipulation involving the two companies.