mailed mumbai high court to treat it as writt.They mailed to send through fille appropriate method what is it?

Answer 1

The judicial system in India is already clogged with thousands of such Writs which has resulted in an abnormal delay in dispensation of justice. Why do you want to add one more?

Answer 2

Please make your question more clear. They may want it by post. I think you have telephone numbers to make inquiries about that! Search in the mumbai municipal web site or something!
Try this :-
www.mcgm.gov.in