There in legal bar to guardian renovating minor property to improve living conditions

It is not prohibited

1. The legal abr or restrain is in transfer of minor's property.

2.There is no bar to make improvements of the proeprty by his legal guardian.

3. So to do this he need to take permission of court as prescribed u/s8(1) of Minority and Guardians Act or u/s25 of the Guardian and Wards Act.

Yes , a legal guardian can maintain and do all such necessary acts , for the benefit of minor.. However you are restricted to sell or create any third party interest

yes it is prohibited.

Other than demolition and reconstruction, alienation, mortgage, sale or transfer, the minor alteration and maintenance of the building can be done without the permission of court in respect of the minor's property, by its guardian.

Which means it is prohibited?

The minor repair and maintenance work suitable for in habitation can be done and it is not prohibited in la as far as minor's property is concerned.