Delhi is high pollution state compare to other state

Delhi is the capital of India 

it;s population is most high as compare to other state that is the one reason of Delhi pollution.
India is god believe country in the world that is the another reason of Delhi  in water pollution.
becouse people are after any type of pooja in that west product are throe in river or lack.
some most pollution in Delhi are bellow
1 incising population
2 inc rising vehicles 
3 incising industry
4 over celebration Diwali
5 over pooja product throe in river and lack etc.
some effect of  Delhi pollution 
1 people are disease
2 animal affected in pollution.
solution of pollution are decries population, vehicle, and release after purifier in industrial water etc.