My father had taken a plot of land on 999 years lease from the local Corporation at a premium of 2914/- on 22/11/1956 which was converted into Freehold on 1/11/2000. He had built a house on this land in 1959-60 at the cost of 30000/- only. What would be the Indexed value of this property in the FY 2022-23?