Party's local unit convenor M A S Subramanian said in a release here that High Courts and the Supreme Court had upheld the amalgamation of Grades I and II of Superintendents posts in government departments.
But the government had not filled 151 vacant posts in departments for years, embarassing the staff awaiting elevation in their career.
He also took strong exception to the Department of Personnel and Administrative Reforms delaying the step to get the Centre's nod to sanction promotion for Assistants to the higher post of Superintendent.
This 'negligent' approach had triggered protests recently by staff awaiting promotion. Instead of conceding their genuine demands, government was adopting `victimisation` approach, he said and urged Chief Minister N Rangasamy to intervene and procure justice to the aggrieved employees.