Thanks Jeff for your prompt response. It worked Finally, I was able to Restore Nightly backup and all TLog backup.
I was using Point in Time Recovery so i was using STOP AT but i removed it and it got restored and able to join the database.
Now both database (Primary and Secondary) shows Synchronized.
I also failed over and Secondary become Primary. I have also failed over again so now Primary DB is Primary back to and Secondary is Secondary back to.
During my BAG set up, I have selected PRIMARY as backup so it will be pk, right?
On my Primary and Secondary Instance Replica, next to Database shows Synchronized lo that's the normal right?
My regular nightly backup for Primary DB will run as it is, right? or it will effect because of Synchronized?
What's the best way to check secondary that up to date with primary or not?
Any other things i have to set up or check as part of post configurations?
I haven't set up Listener so i t will be ok, right?
I have Shared folder set up.
Thanks for your kind support and help to resolve the issue and for better guidance.