Home Ministry sources said it was a rule to take prior approval of the competent authority, the LG, before appointment of senior officers in the Delhi government, a formality the Arvind Kejriwal government did not fulfil prior to Sharma's appointment.
If the rules are followed and the formalities are completed, there are no reasons for the central government to oppose appointment of Sharma, the sources said.
Sharma has stepped down as DG of Tihar Jail contending the AAP government did not seek prior approval from the LG.
In his letter to the Principal Secretary (Delhi Home Department) S N Sahai, Sharma said that since his appointment order has not been issued with the approval of competent authority (Lt Governor), the charge taken over by him is returned to the earlier officer who was holding it.