India and Poland on Monday signed an extradition treaty, agreed to cooperate in combating terrorism and organised crime and inked a five-year defence accord.

Political offences of certain categories, including murder or harm to head of State or government, hostage-taking and other crimes, will attract the provisions of the extradition treaty, which was signed in the presence of Prime Minister Atal Bihari Vajpayee and his Polish counterpart Leszek Miller.

The defence agreement provides a broad framework of cooperation in training of military personnel and supply and modernisation of armament.

Vajpayee termed Poland as a 'reliable partner' and said there was tremendous potential for further expansion of bilateral trade.

At a brief joint press interaction, he said India looked forward to a qualitatively new dimension to its friendly ties with Poland.