Hi friends,
Today is grandly celebrated Karthigai Deepam Festival. Karthigai is essentially a festival of lamps. The lighted lamp is considered an auspicious symbol. It is believed to ward off evil forces and usher in prosperity and joy. While the lighted lamp is important for all Hindu rituals and festivals, it is indispensable for Karthigai. It is celebrated on the full moon day of the Karthigai month which coincides with Krithikai star. 
It is celebrated in a special manner in Thiruvannamalai. Lord Shiva asks Lord Brahma and Lord Vishnu to find out the exact location of his head and his feet. Since Lord Shiva takes a gigantic form, they are not able to find out anywhere. Then Lord Shiva takes the form of a jyothi (light of fire) on the hill of Thiruvannamalai. Therefore, this festival is also known as Annamalai Deepam. Here, a special torch is lighted on the zenith of the hill and it is believed that Lord Shiva's jothi will be visible on this day.
Have a delightful Evening decorated with Lamps in ur home!
MacSpeech
Nice post. The Karthigai Deepam festival is celebrated during the day of the full moon between November and December in Thiruvannamalai. For tourists visiting at this time of year, there are decent number of hotels in Thiruvannamalai offering comfortable stay.