In return, M Subramaniam, 42, promised not to arrest them for violating their work permit conditions.

He also allegedly moonlighted as a car washer himself, after obtaining a licence to do so from the HDB in 2003 - without the permission of his employer.

On Thursday, Subramaniam, who had worked with Certis Cisco since 1988, was charged in a district court with the offences.

The neatly-dressed man sat in the public gallery before his case was mentioned, nervously glancing around the courtroom.

He was arrested by officers from the Corrupt Practices Investigation Bureau on Wednesday after his alleged doings were uncovered in April last year.

Through enquiries and field operations, CPIB officers rounded up foreign workers working as car washers at carparks in Sengkang. Subramaniam was also picked up.

He allegedly began accepting bribes from an Indian construction worker who moonlighted as a car washer in Sunglade condominium in Serangoon Avenue 2 in May 2006.

He allegedly did this again in September last year with another Indian construction worker at a HDB carpark in Sengkang Central.

On his own, he obtained a car washer's licence and scrubbed down cars in Sengkang as well as at the Sunglade condominium.

He is represented by lawyer S Balamurugan and will next appear in court on Nov 20. He is out on $10,000 bail.