I HAVE SOLD ONE OF MY HOUSE ON JULY 2018 to person EMI for EMI for 4 years for ( till June 2022) , 48 EMI ..................what would be date of sale taken as payment he is made n 48 dates and contract of sale was in july 18 and final agreement to sale would be in june 2022 so which date to be taken as date of sale for LTCG and other tax implications