MUMBAI: The Enforcement Directorate ( ED ) has sought information on offshore investments by directors of RNT Associates , a closely held firm which functions as a family office and investment vehicle of Ratan Tata The ED order, dated June 14, also calls for details of investments or loans from RNT Associates and its directors to a Singapore-based entity, RNT Associates Pte Ltd. The order also seeks other information such as the nature of activities of RNT Associates, bank account details and copies of audited balance sheets.Besides Tata, the other directors of RNT Associates are RK Krishna Kumar, a Tata group veteran, and Ramachandran Venkataramanan --a Ratan Tata confidant who is better known as Venkat in the corporate world. Krishna Kumar, a trusted aide of Ratan Tata, was the former MD of Tata Tea and The Indian Hotels Company; he is also on the board of trustees of some of the Tata trusts.The order is under provisions of the Foreign Exchange Management Act ( FEMA ) and the documents are being sought for the “purpose of investigation under FEMA”.“The nature of queries from Enforcement Directorate is related to our investment portfolio. We are compliant with all disclosures and existing laws governing investments and are extending all cooperation,” said a spokesperson for RNT Associates The ED action comes almost a month after the Directorate, the Reserve Bank of India and the Serious Fraud Investigation Office received a letter from a Mumbai-based person detailing the financials and transactions of RNT Associates and its Singapore arm.The signed letter, which also shared some information which is not publicly available, was referred to the Registrar of Companies (RoC) which in turn asked RNT Associates to respond to the observations."We don’t know who this person is. He has a Mahim address. But one gets the impression that he may have been in touch with an insider,” said a source. The letter, however, does not talk about any foreign investments by the firm’s directors.RNT Associates, according to media reports, specialises in early stage and start-up investments in businesses like healthcare and alternate energy.