1) you are eligible for promotion w.e.f 15/10/2014
2) DoP&T’s O.M. No.20011/1/2008-Estt.(D) Dated 11th November 2010
provides interalia
3. On the conclusion of the disciplinary case/criminal prosecution which
results in dropping of allegations against the Government servant, the sealed cover
or covers shall be opened. In case the Government servant is completely exonerated
the due date of his promotion will be determined with reference to the position
assigned to him in the findings kept in the sealed cover/covers and with reference to
the date of promotion of his next junior on the basis of such position. The
Government servant may be promoted, if necessary, by reverting the junior most
officiating person. He may be promoted notionally with reference to the date of
promotion of his junior
3) in your case junior is promoted with effect from oct 2014 .you are entitled to be promoted we.f from said date only