Finally the issue resolved on my own and sadly no response from TAC yet 😞
Any way here are the issues.
I ran cpmDoctor script from $FWDIR/script and it pointed out 3 issues.
One with wrong NAT policy, deleted Default GEO policy and Lots of errors with IPS blade with one of profile
Hence I corrected those as NAT was configured for IP range and it was wrongly configured. Completely deleted the IPS profile.
Took database_export after this but unfortunately it was still not working and here thanks to @Tal_Paz-Fridman for giving me hints and yes indeed surprisingly duplicate objects were created for GTP service and it wasnt allowing me to delete the objects which are by default created while it was allowing me delete the duplicate ones. I deleted those, installed database.
Took again database export and imported and voila it was successful finally.
Thanks a lot guys for your help!! It was much appreciated.
Thanks and Regards,
Blason R
CCSA,CCSE,CCCS