In a massive embarrassment, the Central Bureau of Investigation (CBI) said that it has raided and arrested its own sleuth for allegedly conniving to prepare a `purported` clean-chit to former Maharashtra Home Minister Anil Deshmukh, here on Thursday.

The raids took place in New Delhi and Allahabad while the arrest took place early Thursday, hours after the CBI had swooped on Deshmukh`s son-in-law Gaurav Chaturvedi and his Nagpur-based lawyer Anand Daga late on Wednesday evening, from Worli in Mumbai.