Hikayat Merong Mahawangsa or The Kedah Annals is an ancient tamil literature that chronicles the bloodline of Merong Mahawangsa and the foundation of the Kedah, a state in Malaysia. Though there are historical accuracies, there are many incredible assertions. The era covered by the text ranged from the opening of Kedah by Merong Mahawangsa, allegedly a descendant of Alexander the Great of Macedonia till the acceptance of Islam.
Merong Mahawangsa was a hindu and there were nine hindu rulers before Phra Ong Mahawangsa converted to Islam in 1136 and took the name Sultan Mudzafar Shah. The annal also describes Chola's tamil empire trades on Kedah.The tribute was send to the chola empire on every year by the kedah sultanate to the chola empire and after to the siam.we still can find the antique and god statue of chola dynasty in kedah.The descendants of Phra Ong Mahawangsa is still ruling Kedah able to trace their lineage from Merong Mahawangsa. He named Kedah at that time 'Langkasuka', for which 'Langka' meant 'the land of glory' in Sanskrit, while 'suka' was from the name of the great jainism[later convert to buddhism] emperor Asoka.
KRU Studios has completed the production of its feature film entitled "Hikayat Merong Mahawangsa", which is also internationally retitled as "The Malay Chronicles: Bloodlines" even though the history states that Merong Mahawangsa is of Indian lineage. This epic action adventure, directed by Yusry A. Halim, is loosely based on the myth of its namesake.
KD Mahawangsa is a Royal Malaysian Navy vessel named in the ancient monarch's honor.