Security related issues will be top on the agenda of the talks the Home Minister, Mr. P. Chidambaram will have with British leaders during his three day visit to the United Kingdom. Mr. Chidambaram who is leaving for UK Saturday , will discuss these issues with British Home Secretary, Mr. Alan Johnson, the Foreign Secretary, David Miliband and the Foreign Policy Advisor to Prime Minister, Mr. Simon Mcdonald. Mr. Chidambaram will also meet key security and intelligent officials in Britain.