Chidambaram was criticised for his ministry's failure to prevent the 13 July 2011 Mumbai bombings, despite massive investments in security following the 2008 Mumbai attacks.
On 7 April 2009, India's home minister P. Chidambaram was assaulted by Sikh journalist Jarnail Singh during a press conference in Delhi on the issue of a "clean chit" to Jagdish Tytler.