Can i claim exemption in capital gains tax if i have more than 2 residential properties

i have 4 nos residential properties flats in different cities. i stay only  in 1 nos. property (permanent residence). The other 3nos residential properties are given on rent. The rent income is shown under head ' income from house property'. i also own a residential open land /.plot which i intend to sell in august 2021The capital gains is less than Rs.2 crore.i hv already purchased a residential farm  plot in march 2018. The farm plot converted into non agricultural land in jan 2020. i intend to use the sale proceeds from sale of open residential plot in constructing a residential farm house. since all other residential flats are given on rent can the " mehendi farm " case law applicable

https://cleartax.in/s/invest-multiple-capital-gains-on-buying-new-house-property