See if loan is taken for House construction then if construction is completed within 5 year then interest will be paid shall be allowed from year in which construction is completed interest will be allowed in 5 equal installment Soo interest paid are allowed while computing income from House property with maximum 200000/- and repayement of loan is allowed under 80C max 150000/- same concept is apply in case of purchase also.
As your flat possession taken in 2019, you are eligible to take deduction under 80C as well as on interest also
But first home loan is taken for construction which I am availing under sec 24 and now I have purchased a flat with second home loan , so can I avail interest benifit of both loans under sec 24 and principal under 80c