Hello @Sowmya ,
My bad for getting back late onto this. I was digging for offboarding process of JIRA from ADFS but did not find any documentation from Atlassian.
As a workaround kindly the following:
In your Atlassian application:
Open the Authentication methods screen: For Jira applications, select "settings icon" > System > Authentication methods.
Configuration.
In the Authentication method menu, select SAML single sign-on.
Look for unique name for your configuration with previous IDP.
Validate and remove old SAML SSO settings:
Single sign-on issuer: By default the issuer is https://<adfs hostname>/adfs/services/trust
Identity provider single sign-on URL: By default the url is https://<adfs hostname>/adfs/ls
Kindly validate the above settings and do let me know if you have any further queries in the comments section.
Thanks,
Akshay Kaushik