The agency, which had registered a case against Delhi-based Jain under the Foreign Exchange Management Act (FEMA) in 2009, had completed the investigations into transactions conducted by him to and from foreign shores, especially gulf countries through hawala after which the final notice has been issued, official sources said.
While Jain has earlier denied any wrongoing, an accused can appeal against the notice before the Special Director of the ED.
The ED had earlier alleged that Jain used to run a company in Dubai and was arrested there as well after it came to light that sale proceeds of drugs, running into several crores of rupees, were credited in the firm's account.
Hawala entails routing of large sums of money in an illegal way and by way of skirting the legal banking route.
"Jain has been served the notice and investigations have found him in contravention of FEMA laws. The contravention is about Rs 1,200 crore," they said.
Officials said the agency's probe has found that Jain and his firms did not comply with laid down RBI guidelines regulating forex transactions in India and hence have violated FEMA laws.
Investigators said Jain's operations are believed to be spread over numerous countries.
