Dasara, also called "Navaratri", is among the most important festivals celebrated in India. Unlike the festival of Dussera - "the festival of joy," this is celebrated for 10 days in some parts of the subcontinent.
There is a legend related to the exhibition of toys that is known as Golu (spelled Kolu in some regions). Since the goddess Durga needed tremendous power, all other gods and goddesses transferred their power to Goddess Durga and they all stood still as toys. To respect the self-sacrifice of these deities during the festival days, Hindus revere toys that are in shape of particular gods and goddesses. In Maharashtra, the festival is celebrated on the tenth day of the Ashwin month (around October) according to the Shaka Hindu Calendar. This is one of the 3 and a half days in the Hindu Lunar calendar, whose every moment is considered auspicious. On the last day (Dasara day), the idols installed on the first day of the Navratri are immersed in water. This day also marks the victory of Lord Rama over Ravana. People visit each other and exchange sweets. On this day, people worship Aapta tree and exchange its leaves (known as golden leaves) as symbol of gold and wish each other a bright prosperous future . There is a legend involving Raghuraja , an ancestor of Rama, Aapta tree and Kuber. There is also another legend about Shami tree where the Pandava hid their weapons during their exile. In Maharashtra, people also ritually cross the border of their village / town. This ceremony is known as seemolanghan.
The Dasara is a mark of victory of the great Hindu God Rama(Ramachandra, son of Dasharatha(The King)), for his victory over Ravana in the Ramayana. When Rama had returned to Auyodhya after a very long period, there was a celebration for the victory over Ravana. Also on this day, the Pandavas returned to their home. They had hidden their weapons in trees (which is called Aapta in Marathi). This tree then got famous as the golden tree and on this festival people exchange leaves of this tree as a celebration of happiness and victory over evil. People do pooja of books, gadgets, vehicles and weapons on this day. It is one of days where every moment (muhurtha in Marathi) is considered auspicious in the Hindu calendar. People usually buy new things and celebrate Dasara with great joy and happiness.