Annabishekam at Brihadishwara Temple, Thanjavur, Tamil Badu

 Brihadishwara Temple,TN enwikipedia.com 

Every year on the pournami day (full moon day) in the Tamil month of Aippasi (November) at all Shiva temples in Tamil Nadu, Annabisekam is performed on the presiding deity with piety.
Brihadishwara Temple  also  known  as Rajarajesvaram.

Thanjavur Big Temple TN  shilpaarchitects.com

At the famous Thanjavur  Brihadishwara Temple Annabisekam was performed on the 6th of November, 2014. It was a big temple ritual for which 500 kg of rice and 700 kg of vegetables and fruits donated by the devotees were cooked on the temple premises with the help of hundreds of volunteers who were involved in various chores - washing rice, cutting vegetables and taking the cooked rice, etc., to the sanctum sanctorum.

In the late afternoon cooked Annam and vegetables were reverentially applied on the shiva lingam – 13 feet in height and 7 feet in diameter by temple priests along with selected volunteers. Annam etc., were  applied on the deity as to form the image of Lord Easwar. After Maha Deeparadhanai was done in the evening by the priest, the annam along with vegetables was  removed from the idol and given to the devotees as prasadam. It is believed the prasadam applied on the deity, if eaten, will give good health and cure ailments. This mammoth ritual was well conducted by the temple authorities along with Thanjavur palace devasthanam staff. Thousands of devotees witnessed this rare temple event with devotion.

To the Brihadishwara Temple built by Rajendra Chola in Jayakondam, Ariyalur district, the people contributed about 2500 kgs of rice for annabishekam which was done with religious fervor.
Ref:  From various sources