IAS officer Rajendra Kumar 9 Principal Secretary of Arvind Kejriwal ) and four others have been arrested for alleged corruption by CBI.

Allegations against Mr. Kumar
It alleged that Mr. Kumar had promoted a company called Endeavour System Private Limited (ESPL) and by misusing his official position, helped it in getting tenders of Rs. 9.5 crore through public sector company Intelligent Systems Communication Limited (ICSIL).

The accused persons had entered into a conspiracy to award works to ESPL by designing pre-qualification criteria or without calling tender, the CBI alleged in its remand application.
It is also alleged that Mr. Kumar and the accused persons were found threatening witnesses. 

Criticism of the arrest
The arrest of Rajendra Kumar is also criticized on the ground that Union government is deliberately targeting the officials close to Mr. Kejriwal.