Thirupalkadal Sreekrishna Temple at Keezhperoor in Thiruvananthapuram is one of the oldest temples dedicated to Lord Vishnu. The idol is that of the four-armed Vishnu. It was the family deity of the Kulasekhara Dynasty. The kingdom and the family later came to be known as Venad Keezhperoor Swaroopam. In the Tamil literature of the Tamil Alvar saints, the temple is one of the 108 Divya Desams (Holy Abodes). The Nalariya Divya Prabandham glorifies this temple as being at number 107 in greatness while 108 is Vaikunda in Heaven. Hence devotees see this as the Vaikunta on earth. The temple is constructed in the ancient Dravidian more style. It is believed that the Kollam Era started with the renovation of this temple. The Ay kingdom that constructed this temple later came to be known as Venad, then Thiruvadi and then Thiruvithamkur. According to historians it must have been built 2000 years ago and renovated in the 9th century. After the administration by the Ay royal family, the temple was handed over to the uralar sabha. In the 1980s, 3200 Ambikavilasam Nss Karayogam took ownership of burglars and started the renovation process of the temple.