The police are tightening the noose around the main accused in the multi-level marketing scam committed by Chennai RMP Infotech Private Limited.

Superintendent of Police, Guntur Urban, S. Syamsundar, who has busted the racket, said on Tuesday that the police have been collecting documentary evidence which include the list of payments made to the head office through various banks.

Three persons from Vijayawada and Guntur were arrested on Monday under Prize Chits & Money Prevention (Gambling) Act, 1978.

“In a week's time, we will pool all documentary evidence and bring the accused to book.

We are also opening more cases based on the complaints made by the victims trapped in MLM fraud,'' Mr. Syamsundar told The Hindu on Tuesday.