The "CI Builds" tab in JIRA is empty
The Jenkins integration was created some time ago, where on each commit Jenkins build happens and then it reports back to commit in Phabricator:
JIRA Issue: https://in-portal.atlassian.net/browse/INP-1427
Phabricator Commit: http://qa.in-portal.org/rINP16205
Jenkins Build: http://ci.in-portal.org/job/in-portal-52x/10/
This however have no effect on "CI Builds" tab on JIRA issue, because it's empty.
Solution
Find how Jenkins is supposed to be integrated with JIRA and configure that.