Transfer deed in favour of legally adopted son in haryana

my mother is never married and she had adopted me from her brother through registered adoption deed. she wants to transfer her immovable property on my name through transfer deed without stamp duty as stamp duty on transfer deed is exempted in Haryana for blood relations. my queries are as follows: 1) is adopted son also comes in category of blood relations and is transfer deed without stamp duty is possible in case of legally adopted son? 2) is such transfer deed valid on plain paper or some non judicial stamp required? regards