According to mythology, Lord Rama had seen the Neelkanth bird before and after killing Ravana, so the philosophy of this bird on Dussehra is considered a symbol of victory. At the same time, Lord Rama was also blamed for killing a Brahmin on killing Ravana. Pleased with this, Lord Shiva took the form of Neelkanth and appeared in front of Rama, which gave him freedom from the sin of killing Brahmin.
