10March .The Persian name of the festival consists of čahāršanbe (چهارشنبه), the Persian word for Wednesday, and suri (سوری), which has two meanings; it may mean "festive"[2] and it may also mean "scarlet" (in traditional Persian and some current local dialects in Iran), which stems from the reddish theme of fire. The names of the festival in other languages include Azerbaijani Axır Çərşənbə (in Ardabil and Tabriz), Kurdish Kola Čowāršamba and Čowāršama Koli (in Kurdistan), Qara Chuarshanba (in Piranshahr) and Isfahani Persian Čāršambe Sorxi (in Isfahan).[2][7] The importance of fire is evident in the stone inscriptions of the Achaemenid kings, and the very first mantra of the Rig Veda is in praise of fire. Chaharshanbe Suri and Holi share roots in ancient Aryani