Vallakottai Murugan Temple which is located in Vallakottai village about 9 km away from Sriperumbudur and is 1200 years old. The temple houses a 7 feet long statue of Lord Murugan which is the tallest idol of the God in Tamil Nadu. The idols of Teyvayanai and Valli, consorts of the Lord Murugan, are placed on his either sides. Legends say that the King Bhagareethan had constructed the temple, on the advice of Sage Dhurvasur, to get back his kingdom. Another legend says that the demon Vallan used to torture the Devas, and Lord Murugan had defeated him to restore peace to the region and the temple was built to honour him.
The temple has a tank, known as Vajra Theertham which is believed to have been established by Vajra-ayudham of Lord Indra. Lord Indra used this tank to worship Lord Subramanya. This temple also houses the statues of Sri Vinayagar, Sri Ambaal, Utsava Murugar and Sri Shanmugar. Carvings of Thapas Kamakshi and Lord Rama embracing Sri Anjaneyar can be found on the pillars of Ardha Mandapan. Timings: 5.30 am- 1pm and 3 pm- 8.30 pm.