Concept:?Harvest means gathering crops.It is a very important period for farmers who grow crops.As a crop gets harvested after a long time of hard work.Explanation:There are many festivals celebrated in our country.Harvest is one the important part for farmers.Major festivals celebrated in southern India for harvest areOnam:It is celebrated in Kerala.It is to celebrate the end of the monsoon season.It is to welcome harvest.Pongal:It is celebrated in Tamil Nadu.It is thanks to the sun and nature for their contribution to harvest.Ugadi:It is celebrated in Karnataka.It is to celebrate the beginning of spring.It is to celebrate the harvest.Vishu:It is a spring festival in Kerala.They call it the new year in the south.Bihu:It is celebrated in Assam.It is to welcome the spring season.Lohri:It is celebrated in Punjab.It is celebrated in January.Thus, Onam, Pongal, Ugadi and Vishu are the harvest festival of the South.