Indra Jatra festival celebrated by newari people at Kathmandu in Nepal , September each year and heralds the end of the monsoon season. Indra Jatra festival of the rain god, Indra. The signification of festival begins, when a long wooden pole, carefully selected and cut in the Nala forest of Kavre District, is erected in front of Hanuman Dhoka Durbar Square. A flag of Lord Indra is hang at the apex of the pole.
According to legend story, lord Indra's mother ordered Indra to bring a flower of – (some parijat) jasmine family for some rituals.The flower was extinct in the heaven and so Indra descended to the earth and sneaked into the garden of a local. Unfortunately, Indra was caught and imprisoned in Kathmandu by the farmer. Then his mother came down to the earth and negotiated with the farmers for his release. Farmers agreed to release Indra but on the condition that he would return to the earth every year during that time and be displayed as prisoner for 7 days and that he would pour enough rain (dew) for the crops. So, during this festival, images of Lord Indra are displayed for 7 days.