Grievance mechanism against Registrar decisions creates a statutory appeal to a Joint Director on prescribed terms. Insertion of section 396A creates a grievance mechanism against a decision of the Registrar under section 4 or section 7. An aggrieved person may appeal to an officer not below the rank of Joint Director, as authorised by the Central Government, in the prescribed form and manner and within the prescribed period. The provision establishes a formal statutory route for review of the Registrar's decision under the specified provisions.