Here are some useful slogans-
Feed the Garbage Can, Not the land!
Clean India, Beautiful India
Cleanliness is happiness
Let's be Clean ,Let's be Civilized
Don't make India the next Garbage can!
Homes are never meant to be dirty.
Lets make India a pollution free country.
Ek Kadam Swachta Ki Aor!
Hope these helps, if they do please vote it the brainiest answer.