Thenmozhi "Gayatri" Rajaratnam aka Dhanu (; died 21 May 1991) was the assassin who killed Rajiv Gandhi, herself, and 14 others in a suicide bombing on 21 May 1991, in the Indian town of Sriperumbudur in Tamil Nadu, near Chennai (see also assassination of Rajiv Gandhi). Thought to have been a member of the Liberation Tigers of Tamil Eelam (Tamil Tigers), Rajaratnam was also known as Gayatri and Dhanu. Her birth year has not been conclusively established but research shows that she was still a minor at the time.