Brahmotsavam for Sri Ahobila Lakshmi Nrushima Perumal is scheduled between 27th February and 9th March 2012.
Ahobilam is located in Karnool district of Andhra Pradesh in the hills of the eastern ghats, about 400 km northwest of Chennai.
The temple consists of nine shrines to Lord Nrisimha located around a 5 km circle. In addition to the nine shrines, there is a temple for Prahaladavarada Varadhan in the foothills of the mountain. Due to security reasons and the difficulty in performing daily worship, many of the utsava vigrahas of the nine shrines are kept in this temple.
For more details about Ahobila, travelogue and stala puranam click here: http://anudinam.org/2011/12/10/ahobilam-nava-narasimha-sthalas/