The 15th dark night of the month of Ashwin according to Hindu calendar is celebrated with excellent pomp and energy by Hindus.This is the day when in around 5000 B.C Lord Rama returned to Ayodhya. The whole empire of Ayodhya danced in pleasure on returning of Lord Rama.
The, excellent yet ethical, Lord Rama finished the era of Asura Ravana in Lanka. He created the righteousness and benefit win over vice. Rama's come back to Ayodhya represents many activities simultaneously. Before returning to Ayodhya, Shri Rama made vibhishan the king of Lanka.
Back there in Ayodhya, Bharata was ready to wwelcome his elder brother in the best possible way. Bharata waited desperately for his brother for 14 lengthy years. He resided like a hermit in a little cottage while his brother Ram went for exile. Therefore, the 'Bharata Milap' show too becomes considerable. Soon after returning to Ayodhya, Bharata himself conducted the Rajyabhishek of Shri Rama and made him the king of Ayodhya.
Since then it has become traditional to enjoy the day with so much of passion. Following the tradition people till today wear new clothes, decorate their homes and pray Lord Rama to shower his blessings on their loved ones.