How to get ad-hoc promotion in banking services

I am working in a Govt. Financial Institution. I had joined the Bank in year 2005. During the course of my service certain cases became bad assets and were declared fraud. Since I was the Processing Officer I was kept under suspension for two years i.e. from 2008 to 2010. In the year 2010 I joined again but the Bank imposed penalty on me demoting me to the first stage of incremental scale and that I would not be eligible for the annual increments or promotion for the next five years and the penalties shall have cumulative effect. The case is also under CBI investigation and the case has not yet been closed. I was called for promotional interview this year but the results have been kept in sealed cover. I would like to mention that I have been working with sincerity for Bank even though I was serving the penalty. Please clarify whether can I be considered for Ad-hoc promotion ?