A Ghaziabad court has begun trial against accused dentist couple Rajesh and Nupur Talwar's in their teenaged daughter Aarushi and domestic help Hemraj murder case today.

The CBI, which probed the case, has sought examination of three of its witnesses which include a UP electricity department official Rajesh Kumar and a state police cameraman Chunni Lal, who had taken the photographs of crime scene besides forensic expert A D Saha.

In a setback to Aarushi's mother Nupur Talwar, the Supreme Court had yesterday dismissed her review petition challenging the summons issued by the special CBI court here in the murder case and warned her of “exemplary costs” for any frivolous litigation in future.

A bench of justices A K Patnaik and J S Khehar had also dismissed Nupur's plea for further probe into the crime and dismissed her bail plea, terming it as infructuous.The trial, which was slated to start on June 4, had been deferred following a lawyers' agitation.