A bastion of the first Hindu royal heritage in Aceh can still be seen until today near Ujong Batee beach, Ladong Village, Masjid Raya Subdistrict, Aceh Besar District. This fort is located in the Gulf of Krueng Raya and faced with Inong Balee Fortress located in the hills beyond. Uniquely to reach the inside of this castle then you need to climb first or with a ladder that has been provided.
Indra Patra fortress is part of 3 fortress in Trail Aceh lhee Sagoe. Trail Aceh Lhee Sagoe is an area connecting three Hindu-Buddhist relics in Aceh. If all three are connected (Indrapatra, Indrapuri and Indrapurwa) it will form a triangle and also called Aceh Lhee Sagoe Trail.
Indra Patra Fortress was built in the 7th century AD by Son of King Harsa of Lamuri Kingdom, the first Hindu kingdom in Aceh (Indra Patra) before the arrival of Islamic influence. The position of this fort is quite strategic because it faces directly with the Malacca Strait so it serves as a defensive fortress from the Portuguese fleet attack.
Indra Patra fortress is large and made of 2 meter mountain rock arrangement. The wall adhesive of the castle is estimated to be a mixture of lime, clay, egg white, and shell collisions. During the Sultanate of Aceh Darussalam, the fort was used as a defense against the Portuguese fleet.
It is possible that this fort played a role in blocking the Portuguese fleet that wanted to enter Aceh through the bay of krueng raya. In the coastal area of the bay of the river Krueng raya is also there is another fort named Fort Iskandar Muda.