Hi Durga,
Have you tried traceflow utility in NSX? It is very helpful to troubleshoot if Source and destination are part of NSX.
Use Traceflow for Troubleshooting
2. You can try capturing the packet on EDGE if your destination is outside of NSX.
Gathering Troubleshooting Data
Example :
debug packet display interface vNic_0 host_192.168.20.2_and_tcp_port_443_or_tcp_port_80
Please consider marking this answer "correct" or "helpful" if you think your query have been answered correctly.
Regards
Amol Jadhav
VCP NSXT | VCP NSXV | VCIX6-NV | VCAP-DCA | CCNA | CCNP - BSCI