New Delhi- Former Indian foreign minister and BJP leader Jaswant Singh has been admitted to the ICU of Army Research and Referral Hospital here after he slipped at his residence and sustained head injury. The 76-year-old former Defence Minister fell down at his residence on Thursday night following which he was rushed to the hospital, sources said. Singh was expelled from the BJP early this year. He then decided to contest the Lok Sabha polls from Barmer in Rajasthan as an independent. He lost the election.