We could revoke an user successfully. But, unable to update the channel with crl details. We are getting below error 

Unexpected error error applying config update to existing channel 'trusttrace': initializing channelconfig failed: could not create channel Application sub-group config: setting up the MSP manager failed: admin 0 is invalid: could not validate identity against certification chain: The certificate has been revoked

We have followed below standard steps to revoke an user certificate by using node.js fabric library,

1) revoke an user by serial, AKI for a given certificate
2) Generated CRL for the same 

caClient.generateCRL({}, adminUser)

3) fetching the channelconfig  and updating the config with crl

original_config_json.channel_group.groups.Application.groups[orgName].values.MSP.value.config.revocation_list = [crl];

4) computing delta w.r.t modified changes and signing the same with org admin / registrar and updating the channel