The Central Bureau of Investigation court on Monday remanded Krishna, who was arrested in connection with the Noida double murder case, to four days in CBI custody, allowing the investigating agency to conduct some more scientific tests on him.

The designated CBI court, where Krishna was produced upon completion of his 10 days of custody, passed the order after hearing the arguments of both the sides.

Requesting for the remaining four days of CBI custody, CBI counsel R K Saini said that Krishna needed to be questioned further in connection with the case and some more scientific tests were required to be conducted on him.

However, the plea was opposed by defence lawyer F C Sharma, who again claimed that Krishna had been in the illegal detention of the CBI from June 3, till he was shown as arrested on June 13.

Krishna, who used to work as the compounder of Dr Rajesh Talwar, was arrested in connection with the case on June 13.

Talwar, who was arrested for the murder of his daughter Aarushi and servant Hemraj, is currently in judicial custody.