C.Excise registration

No , You can't do this,  you have to take new Excise Registration, for new location, and surrender your registration certificate at Mumbai Excise Dept. if you want to transfer the Cenvat credit of Mumbai plant  to new plant,  so first you take new Registration, and sale the stocks, Machinery etc (Input or FG, Capt Goods) from Mumbai plant to new plant . then you surrender the registration of Mumbai plant.
 

I agree with Mr Raghatate.

 Thanks Mr.Ajay  for your answer and time.

Regards