Gift share by father to son

To transfer of share first AoA and board of directors will have the permit
then hold a board meeting
execution of SH4 form from both the party means transferor and transferee
then execution of gift deed in 500 stamp paper duly notarised
then issue of new certificate

new certificate will be issued with in 2months
and if the transfer of share is above 50k then you disclose it in your company itr as per incometax act
stamp duty of .025% of total consideration amount and if there's is no consideration value for gift transfer then stamp duty is calculated on the market value on the date of transfer in case of transfer of share by way of gift

If stamp duty calculate .025 % then why 500 stamp paper need