The Central Bureau of Investigation has issued a look-out circular against former ICICI Bank chief executive Chanda Kochhar and has revived ones against her husband Deepak Kochhar and Videocon managing director Venugopal Dhoot. Look-out circulars are notices sent to transit points like airports to restrict the movement of people under investigation by probe agencies. Last month, the CBI had registered a First Information Report or FIR against the three people over allegations of irregularities in providing loans to Videocon Group when Chanda Kochhar was heading the private sector bank.