The Central Bureau of Investigation (CBI) has taken over the probe in the fake currency scam that was unearthed in the State Bank of India's (SBI) Domariyaganj branch in Uttar Pradesh, officials said Wednesday.

"A CBI team is slated to reach Lucknow Wednesday and the state's Special Investigation Team (SIT) officials will brief them regarding the case and the proceedings till date," additional director general of police, (crime, Law and order), Brijlal told IANS.

The scam was unearthed after the arrest of the cashier of the SBI Domariyaganj branch, Sudhakar Tripathi July 29, and Rs 30 million were found to be fake in the currency chest after the Reserve Bank of India scanned the notes.

"The case was referred to CBI about a month ago and till date the case was being jointly probed by the Special Task Force (STF) and the SIT," Brijlal added.

Besides the Domariyaganj case, two other fake currency cases, in Aligarh and Bijnore, were also referred to the CBI earlier.

"All these cases will be probed by the CBI," he added.

Meanwhile, in yet another seizure of fake currency in the state, the Kanpur police arrested four persons late Tuesday and recovered fake currency notes worth over Rs 100,000.

"Viresh Sharma, Avnish Kumar, Amar singh and Pankaj Bhadauriya were arrested from Vishnugarh locality. The notes are of the denomination of Rs 100 and Rs 500," superintendent of police, Prakash Tripathi, told IANS.

The police also seized the luxury car they were travelling in and they have confessed to buying the fake notes from a person in Etah district at sixty percent value, he added.