The CBI today opposed dentist couple, Nupur and Rajesh Talwar's plea in the Supreme Court for transferring from Ghaziabad to Delhi the trial in the case of murder of their daughter Aarushi and a domestic help against them.

Additional Solicitor General Haren Raval, appearing for the agency, submitted before a bench headed by Justice B S Chauhan, that there were "some hidden motives" behind filing of the plea.

He hinted that the petition for transfer of the case might have been filed as section 438 of the Criminal Procedure Code (relating to anticipatory bail) is not applicable in Uttar Pradesh.

The bench after hearing his arguments asked him to file the response of the Central Bureau of Investigation (CBI) by Thursday and listed the matter for further hearing on February 27.

The court had on February 3 sought the CBI's response on the plea of the Talwar couple for transferring the trial relating to the murders of their daughter Aarushi and domestic help Hemraj from Ghaziabad to Delhi.

The apex court had given the agency four weeks to file their reply, after the couple had claimed that most of the witnesses were Delhi-based and that the atmosphere in the Ghaziabad court was hostile since Rajesh Talwar was the victims of a knife attack in January last year.