This is Ravan Dahan. An effigy of the Demon Ravan of the Ramayana is burnt down to conclude Dushera celebrations in North India.According to the Ramayana, Lord Ram slew the 10 headed demon Ravan on this day.Hence the name of the festival(Dus-10 +hara=defeat).It symbolizes victory of good over evil.
wealthymatters 
thank you for your post.i wish i can understand the mening of the fire work
This is Ravan Dahan. An effigy of the Demon Ravan of the Ramayana is burnt down to conclude Dushera celebrations in North India.According to the Ramayana, Lord Ram slew the 10 headed demon Ravan on this day.Hence the name of the festival(Dus-10 +hara=defeat).It symbolizes victory of good over evil.
Always good to win over evil
Yes,quite so.