1. Registraion charges of gift deed and property are state matters. You can consult local advocate or sub-registrar office. I can assist you in preparation of gift deed.
2. In case of transfer of property through gifts, period of holding and cost of acquistion of previous owner is considered. The difference would be only of indexation of cost. After 2 years, ICOA would be more due to high CII but sale consideration may also increase after 2 years. capital gain is taxable at special rate of 20%.
3. CII of allotment date would be considered i.e. 2009-10. If you sell the property in FY 2021-22, Indexed cost of acquistion would be Rs. 1.91 CR.
For detailed discussion, you may opt for phone consultation.