EOU Credit Utilization

Dear All,

My query is as follows-------

There is a Unit having Ground, first and second floor registered under EOU/STP. for Export of Software services.

The 3rd floor is engaged into domestic Services.

The Unit is having only one Service Tax registration Number.

Query- 1- Can both DTA and EOU units operate in one premises and under one Service TAx registration?

Query-2- Can EOU unit adjust its unutilized cenvat credit against the tax liability of the DTA unit?

 Please guide....

Jeevesh Mehta