I cheked myself did not find any rule allowing or disallowing to apply a new job. DPE guidelines only says about transfer of serive bond from one PSU to other one .I have signed the bond while coming for study leave and will return back only after 1 year, the DPE guidelines are clearly of help at that time. Although I am on study leave without salary still I am on service and this period will be counted for my total tenure of service and all benefits like gratuity and pension etc.
The new job needs NOC from my present employer who is denying to do do so.