Assets worth around Rs 150 crore have been attached under the anti-money laundering law as part of an ongoing investigation against the Rose Valley Group, the Enforcement Directorate said on Wednesday.

A provisional order for attachment of assets has been issued under the Prevention of Money Laundering Act (PMLA) and as many as 139 immovable properties consisting land, flats, commercial and office space, shops etc. registered in the name of various companies of Rose Valley Group and its directors in Tripura, West Bengal, Andaman and Nicobar Islands, have been frozen, the agency said in a statement.