Gangaikonda Cholapuram is a town located in Jayankondam, Tamil Nadu, India. It became the capital of the Chola dynasty in c. 1025 during the reign of Rajendra Chola I, and served as the Chola capital for around 250 years. The town is about 70 kilometres (43 mi) northeast of Thanjavur city. As of 2014, the ancient city exists as a heritage town in the Ariyalur district of Tamil Nadu, India. The great temple of Brihadeeswarar Temple at this place is next only to the Brihadisvara temple at Thanjavur in its monumental nature and surpasses it in sculptural quality.
The city seems to have had two fortifications, one inner and the other outer. The outer was probably wider. The remains of the outer fortification can be seen as a mound running all around the palace.
The surviving temple in Gangaikonda Cholapuram was completed in 1035 AD. Rajendra emulated the temple built by his father after his victory in a campaign across India that Chola era texts state covered Karnataka, Andhra Pradesh, Odisha, and Bengal. After his victory, he demanded that the defeated kingdoms send pots of Ganges River water and pour it into the well of this temple.
The royal palace also was built of burnt brick. The ceilings were covered with flat tiles of small size, laid in a number of courses, in fine lime mortar. The pillars were probably made of polished wood, supported on granite bases; a few pillar bases have survived to this day. Iron nails and clamps have been recovered from this palace site.There is an underground tunnel that links the palace and the temple inner 1st pragara(north).