Gifting Shares to My wife (Housewife with no income) worth more than 20 Lac

Hi, I need to transfer shares to my wife and the value would be more than 50k and she is a housewife and I’m a salaried employee- and she has never file the ITR till now -

  1. Does she need to file an ITR ? And report the transfer of shares in the ITR ?

  2. If she sold the share and there is LTCG - will the gains will be clubbed in my income ?

  3. Who is going to pay the LTCG ? Me or her ?

  4. After the sale of shares- Does she need to file the ITR and mention about the sale and income ? If gains are even less then 12.5 Lacs (since no tax to be paid till 12.5 L of Income ?