First , do it yourself and when others will see that they will follow you and start cleaning themselves.
Encourage people to install dustbins in vehicles , so that people don,t chuck their wrappers on the road.. 
I think this might help .

We can clean our india as it is said prevention is better than cure. so first of all we should not throw litters here and there. establish and use more and more dustbins. encourage people to not throw litters. help in cleaning roads and public places.
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