Hua Hin (Thailand), Oct 24 : Prime Minister Manmohan Singh Saturday suggested a commemorative ship expedition in 2011-12 to mark the sea routes developed during the 10th-12th centuries between India and Southeast Asia.

Addressing the seventh India-ASEAN Summit here, Manmohan Singh said: "The sea route could cover modern and ancient ports in ASEAN countries and other East Asian countries." (IANS)