1. Since the court has passed the decree you have nothing to worry.
2. I believe the decree is now Preliminary in form. if that is so then apply for Final Decree wherein the court will declare the shares in separate demarcated portions.
3. Once that is done get the final decree registered from the local registration office . Your job is done.
4. The decree of court is valid and enforceable and no other tile document will be required. on the basis of decree you will get the Mutation done as well.