Raman,
It looks like the DB doesn´t allow minimally logged operations. Therefore, these are the options that I see:
1. As previously suggested, after you load the database you are loading transaction log dumps out
of sequence.
2. You might have performed an operation ON the DR site that invalidates the loading of
A transaction log dump, such as "truncating the log on checkpoint" or otherwise
3. You might have executed a transaction at the DR site, after a transaction log load and the next
transaction log load.
Regards,
Jean-Pierre