Iam the only adopted son of my deceased parents, Christian by faith.and a permanent resident of WEST BENGAL.There is an outstation immovable property in the name of my deceased mother,being the only son of my late parents,Will i be able to execute the power of attorney in favour of a third party transferring the ownership right to that third party? if yes what are the legal procedures required and what documents and ID proofs need be produced at the time of execution of the power of attorney?Secondly,in my absence is my wife competent to transfer the ownership right of the above mentioned property belonging to her late in-laws by way of power of attorney to a third party and what are the necessary documents and ID proofs she need to produce at the time of executing the power of attorney?