1) once irrevocable power of attorney has been executed by A in favour of B for valuable consideration power of attorney cannot be cancelled by A
2) B in turn has given C selling rights for said property as per orders passed by court
3) C can sell the property as per court orders
4) however it is better that sale deed be executed by B in favour of C as per power of attorney to avoid legal complications in future
5) in order to confer clear and marketable title to property sale deed is necessary in favour of C
6) signature of A is not necessary as irrevocable power of attorney has been executed by A in favour of B