As in Rural India cattle rearing along with agriculture is followed. And the cow dung can be converted into biogas which can be helpful for solving the energy needs of rural India.

But it is not so efficient because the cow dung can be made into much usefull manure to help the crops grow better then the pesticides.

 Thank You......!!!!!!!!!
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Yours, Jahnavi.
A s rural India are poor that they cannot afford to much higher cost .But cow dung as the most cheaper element can be easily converted to biogas and they can use it too.