how to debug trigger in salesforce?

Hello Adarsh,

Please check below link to get more detail about debug log

.https://www.salesforce.com/us/developer/docs/apexcode/Content/apex_debugging_debug_log.htm (https://www.salesforce.com/us/developer/docs/apexcode/Content/apex_debugging_system_log_console.htm)

https://www.salesforce.com/us/developer/docs/apexcode/Content/apex_debugging_system_log_console.htm

Please let us know still if you are facing any issue.