The CBI has on Thursday arrested Rajkumar, servant of Durranis. Rajkumar was released from detention by the CBI on Wednesday night. But he was again arrested by CBI at 6:15 a.m. today.

Earlier, the CBI had summoned Dr Anita Durrani & her husband Praful Durrani for questioning on Wednesday. The couple was grilled for several hours. It has been learnt that the two were also subjected to a psycho-analysis test. The CBI had conducted a lie detector test on their help, Rajkumar, on Tuesday.

The CBI is also looking at the possibility that Aarushi’s murder may have been a contract killing. Aarushi’s mother Nupur had apparently withdrawn Rs 26,000 from her HDFC Bank account two days before the murder.