Court decree registration in new delhi for immovable property - why do we need to pay circle rate

It is not necessary to register a court decree because it makes no difference whether the decree is registered or not.

But if you would like to proceed with the transaction pertaining to immovable property on the basis of a court decree, it is pertinent that the applicable stamp duty is to be paid as per the relief granted.

You can enquire about the stamp duty payable in the local sub registrar office because the stamp duty differs from one state to another across pan India.

Of course you will have to pay stamp duty and registration charges to revenue authorities through Sub-Registrar besides conversion charges from leasehold to freehold to L & DO. 

Thank you so much for your replies. Thank you so much for your reply. The property is registered with L&DO under my grandfathers name(deceased) . Court passed a decree in our favor. How do we get the peoperty in our name - is it mutation or substitution. What is the procedure, documents required and the time taken for this.