Union Govt. has introduced Modified Assured Career Progression scheme (MACP) for its employees replacing earlier ACP. The present MACP allows 3 financial upgradations in the gap of 10-20-30 years. Earlier one gives 2 ACPs in the pay scale of next higher post. For a large number of employees the old scheme is beneficial. Government has forcibly introduced a rule to the loss of such employees. Can the government do so ? Is it constitutional to reduce the existing benefits without giving an option to the employee. There are some judgements in this regard. Can someone help. Thanks.