While you have mentioned that the conviction has been set aside by the high court and the same has not been challenged by the department in the Supreme Court, you have not mentioned whether the department has conducted a separate disciplinary proceedings either before, during or after the criminal case.
I am presuming that no such separate departmental action has been initiated. If so, then after acquittal from the high court and in the absence of any separate departmental action, you should be eligible to get pension and other monetary benefits. As regards promotions, the promotion committee recommendations are generally kept in sealed cover during pendency of the criminal case; they same may have to be opened. Suspension may also get regularised. Since you have already filed a writ petition for getting these benefits, you can press these issues in the writ petition.
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