Hello Shree
Again, I have only done R3load based system copies (migration) if there is a change in the OS and even if the DB stays the same but it looks like BR*Tools provides the functionality to do Heterogeneous system copies according to the information supplied in this SAP note
1003028 - Extended support for database copy in BR*Tools
Check the point 3. Enhanced support for heterogeneous database copies
But it does not say anything about the archive logs. I believe it should be possible ONLY if the systems have same Endian
Maybe Stefan Koehler can have a better suggestions on this like using Oracle to Oracle
1508271 - Oracle Lifecycle Migration Service (formerly O2O/Triple-O)
Cheers
RB