"Door to door collection" refers to the collection of solid waste from the doorsteps of households, shops, commercial establishments, offices, institutional, or any other non-residential premises, as well as the collection of such waste from an entry gate or a designated location on the ground floor of a housing society, multistory building or apartments, large residential, commercial, or institutional complex or premises. The vehicles are running around the city at pre-determined times with a musical bell to collect MSW from doorsteps. Afterward, the collected MSW is transported to a secondary collection point for segregation and disposal in a scientific manner.