Tds query

TAN is unique number which is not dependent on State wise; it depends on which location you have registered under TAN.

TAN is unique number which is not dependent on State wise; it depends on which location you have registered under TAN.
 

where and why do you want to use tan of diff. state.

Correct.Tan no obtained in the location where you get registered.You can file returns using your registered  Tan no even it belongs to another state.

For filling tds return as well as payment of TDs in Mumbai ?

Whether I can do that

yes, you can deduct and pay tds in mumbai. but return will be filed on registered address only and payment that is made in mumbai has to be paid by registered office.... for example, tan is registered in surat and payment is made in mumbai. then payment should be made from office in surat or on behalf of office in surat and paid to person in mumbai.