maha shivaratri, Upavasa, Jagarana

Mahashivaratri festival celebrated by Indians on magha bahula chaturdasi. Chaturdasi is the favarate day of Lord Shiva.
When is maha shivaratri in 2010
As per Telugu months the day before no moon day (amavasya) is called chaturdasi. These chaturdasis are known as masa shvaratris. So one year contains 12 masa shivaritris. In this 12 masa shivaratris one
History of maha shivaratri,festival celebrations
When the Tejo Lingam took birth that night was called as Maha Shiva Ratri festival. From that time Hindus Celebrating. That day as Mahashiva Ratri festival.

So people do Upavasa all that day, and do Jagarana all night and worship the Lord Shiva at midnight. That Tejo lingam is located on earth at Arunachalam in Tamilnadu State of India. (for more details visit pancha Buta Lingalu at Manadi.com)

For more detailsmaha shivaratri,History of maha shivaratri,Upavasa, Jagarana, mahashivaratri, mahashivaratri festival celebration, maha shivaratri 2010,Tamilnadu State of India,Hindus Celebrating