Safai Karamchari is defined in 4 entries on this site. They do not all use the same wording, so each version is shown below with the entries that use it. Check the definition of the scheme you are applying for: that is the one that counts.
How each entry defines it
Most used wording first
A safai karamchari is a person engaged in sanitation work, including waste pickers.
Official wording.
Used in 2 entries:
A person engaged in sanitation work, including waste pickers, but not domestic workers.
Official wording.
Used in 2 entries: