help regrdng noc

at present i m wrkng in gramin bank as an office assistant and got selectd in union bnk in clerical cadre but at interview time i did not shown to interview board that i am wrkng in gramin bnk,i want to know that if i resign from gramin bank and j…

at present i m wrkng in gramin bank as an office assistant and got selectd in union bnk in clerical cadre but at interview time i did not shown to interview board that i am wrkng in gramin bnk,i want to know that if i resign from gramin bank and joins ubi without noc then will there be any problem?If suppose ubi comes to know that in future that i was already in job in gramin bnk when i gave the intervw for ubi then will it create problem for me like termination frm job or aything else.

ny1 plz give ur advice