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The pollution free certificate is valid for 3 months
hope you like it
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The pollution certificate is valid for three months 
it is our responsibility to renew it again after three month 
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she did not ask the responsibility
koi bat nhi aap ko kya dekt h
don't know english while commenting
sorry don't feel bad i just wrote it for fun
no problem but you say so i am asked that are you perfect in english