Islamabad -  Pakistan's president has invited India's prime minister to visit, the latest sign of thawing relations between the historical arch enemies.

The Pakistani government says President Asif Ali Zardari extended the invitation Friday in a letter sent to Prime Minister Manhoman Singh.

Zardari met with Singh in April during a brief pilgrimage to a Muslim shrine in neighboring India.

Both countries were carved out of British India and achieved independence in 1947. They have fought three major wars since then, two of them over the disputed territory of Kashmir.