Prosecution of dy Registrar ?

It would depend on the complaint and case.

If you are aggrieved by the decision of the Deputy registrar then you can prefer an appeal against the designatred person before his higher officer who is also the appellate authority to try this case.

Therefore you can prefer an appeal before the District registrar with your grievances and get them redressed as per procedures of law.

The title of your post is Prosecution of the Dy Registrar. The term prosecution implies a criminal offence. When a person occupying a high position commits a criminal offence the permission of a higher authority may be required to prosecute him. If a person in authority gives an order, which he has no right to give, a writ of prohibiton can be filed before the High Court. If the person is guilty of a criminal offence against a person no permission any higher authority is required to file a complaint against him. Without a narration of the case no opinion can be given.

What are the facts? What is the context?

If you aggrieve the orders of the Dy. Registrar, you may appeal to the next higher authority (maybe a Regional Joint Registrar or District Registrar of Cooperative societies.