Done

Sorry,

'wgGroupsRemoveFromSelf' => array( [...]

'hiwiki' => array( 'botadmin' => array( 'botadmin' ) ),

needs to be removed as well from the config, and

$wgGroupPermissions['bureaucrat']['abusefilter-modify-restricted'] = true;
$wgGroupPermissions['bureaucrat']['abusefilter-revert'] = true;
$wgAbuseFilterAvailableActions[] = 'block';
$wgAbuseFilterAvailableActions[] = 'rangeblock';
$wgAbuseFilterBlockDuration = '1 month';

from the AbuseFilter config.

Also, please recreate the groups Former_Administr, Former_Bureaucra tempoaily with some dummy permission, so that they can be emptied (looks like they were wrongly renamed in the past), cf. https://meta.wikimedia.org/w/index.php?title=Special%3ALog&type=rights&user=&page=User%3AAmitprabhakar%40hiwiki

Config changes made

Users in those bad groups have been removed straight form the hiwiki database

There's a number of other groups that were disabled with members in them: filemover, rollbacker.

(In reply to comment #4)

There's a number of other groups that were disabled with members in them:
filemover, rollbacker.

Gone also