US wants India along with Pakistan, Israel and North Korea to join the Nuclear Non-Nonproliferation Treaty (NPT), a top Obama administration official has said.

"Universal adherence to the NPT itself - including by India, Israel, Pakistan and North Korea - remains a fundamental objective of the US," Rose Gottemoeller, Assistant Secretary of State said in her opening remarks at the Third Session of the Preparatory Committee for the 2010 NPT Review Conference being held at the UN headquarters in New York.