Cross domain restore

Hi techies,

I got a request to perform a cross doamin restore where the NDMP backup has taken in X domain running in 6.5.6 UNIX . And the taget site Y domain is running in  7.5.0.4. Master server OS UNIX.

My query here is

1 ) Shall we perform cross domain restore for NDMP backup ?

2) Shall we perform cross domain restore for different NBU version ?

3) If so Please advise the steps to perform the activity.