You can get an idea from the advertisement of swacch bharat abhiyaan. you also can draw a road with a boy picking up the trash and throwing it in the bin

hope you liked the idea.
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1) You can make Gandhiji with a speech bubble, "Swatch Bharat Swatch Bhavanae, Swatch Bhavan, Swatch Bharat ".

2) You can make some empty roads with a lot of trash. Then make a women brooming the bits of paper and a little boy looking at the dirty and unnclean place.

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