Worship services are conducted six times a day.

Special worship is conducted during Mahasivaratri, Panguni Peruvizha, Thai and Aadi Amavasai (new moon day).

On the wall around the circumambulatory path behind the temple, there are inscriptions from the later Pandya period. These provide information about the donations made to the temple. The Thirubuvanam copperplate of Jatāvarman Kulasekara I (1190-1217 C.E.) records the donation of 1200 lands to 1080 Brahmins under the name 'Rajagambheera Chaturvedimangalam'. It also states that the remaining 120 lands were donated to the Thirupoovananathar/ Pushpavaneswarar temple. Its boundaries were marked by riding elephants along the boundary and written on copperplates (official documents) by the officers on king's order. During the reign of Maravarman Sundara Pandian II, some more villages were donated along with these villages and another Thirubuvanam copperplate was issued. In the northwestern corner of the temple , on the circumambulatory path, there is an inscription which states that, in the 2nd regnal year of Sadaiyan Māraṉ (Rajasimha), a person named Kommaṇasāmi — who was the wife of Arayan Vīranārāyaṇan, also known as Vīrapāṇḍiya Vīṇaimārāyan and the sister of Gunavūr Ayyan Maṇakkādu Uḍaiyān — constructed a sri temple and consecrated it. To light a perpetual lamp (nandāvilakku) in that temple, she also donated seventy-five goats in the name of the god at Thiruppuvanam, through one Poovanavan Arayan of Vettikkudi (Idaikkudi).The inscription also states that Poovanavan Arayan, who received these goats, should give no less than one uzhakku of ghee to the god of Thirupoovanam every day. The inscription on a broken pillar lying on the road outside the eastern wall of the temple states that in the 4th regnal year of Sadaiyan Māraṉ (Rājasimhan), the Chera king, Cheramānār Rājādityavarman alias Kōkōnathavarman, donated one hundred goats to the deity of Thirupoovanam, to burn a perpetual lamp in that temple.

The temple is 400 feet long from east to west and 327 feet wide from south to north. The Rajagopuram built by Thirumalai Nayaka at the front of the temple is left unfinished. Similarly, most of the 64 mandapams that were decided to be built are unfinished. Adjacent to this Gopura is the Ponnanaiyal Mandapam, and next to it, a mandapam for accommodation has been built with a roof structure similar to the Thirumalai Nayaka Mahal. A manimandapam is built in front of these mandapas. There are three storeys in the temple vimana. The shikhara part of this temple is built in the North Indian Nagara style. There are four circumambulatory paths (prakaras) in this temple.

The Ardhamandapam contains sculptures of Vinayaka and Subrahmanya. The niches (Devakoshthas) contain the sculptures of Dakshinamurti, Lingodbhava and Durga. Murugan is enshrined in a separate shrine along with Valli and Devayani. There is a separate shrine for Maha Lakshmi in the north-west of the temple. In the first prakara, there is a separate shrine for Chandikeswara. Apart from this, there are shrines for Birmathandeshwarar (a form of Shiva), Manikkavasagar, Karaikal Ammaiyar, Surya, Chandra and Bhairava. The cornices in this temple are very beautiful. The water of the Vaigai river is used for ritualistic purification (abhishekam) in the temple. In the second prakara, a multi-pillared mandapam has been constructed. A separate shrine for the goddess has been constructed in this Prakara. Since the temple was renovated later, the original structure from the early Pandya period cannot be seen anymore. Parts of its original structure are lying around the temple. The present temple contains a copper idol of Somaskandar from the 10th century CE and stone sculptures of Durga and seven mother goddesses (Saptamathar) from the 9th-10th century CE.

Takavalāṟṟuppaṭai, Sivagaṅgai māvaṭṭam tolliyal kaiyēṭu p - 81 (Information Officer, Sivagangai District Archaeological Handbook Page - 81), Mrs. Devishri's data