Parakkattu Mahadeva temple is located at Vellangallur in Thrissur district, Kerala. The main deity worshipped in the temple is Shiva in Shivling form. The darshanam of Parakkattu Mahadeva temple is towards east.
The Upa Devatas worshipped in the temple are Ganapathy and Nagayakshi.
The temple belongs to Ottur Mana.
There is no annual festival in the temple. Mahashivratri is observed here. Pradosham on every fortnight is another important day. Mondays are considered highly auspicious to propitiate Shiva here.