Hello Prashant,
I can help you doing captures on the CLI,
access-list capin permit ip host remote_host_private_ip host server_private_ip
access-list capin permit ip host server_private_ip host remote_host_private_ip
capture capin access-list capin interface inside
You should be able to see the request ( from other site host) and replies( from this server)
Show capture capin
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Julio
Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC