India and Singapore Tuesday signed an agreement on a long-term arrangement for conducting joint training and exercises between the Indian Air Force and the Republic of Singapore Air Force. The agreement was signed by India's Defence Secretary Vijay Singh and Singapores Permanent Secretary of Defence, Chiang Chie Foo as a two-day India-Singapore Defence Policy Dialogue began at Delhi today, an Indian Defence Ministry statement said.During the dialogue, both India and Singapore gave an update on their bilateral defence relations and expressed the need to further intensify cooperation, the statement said. "The defence sub-groups of both sides reported progress made in respective fields including research and development. The regional security aspects, both from Indian and Singaporean perspectives, were also discussed," the statement added.