Hi,
Section 24 talks about Computation of Income from House Property. Section 71 is about Set off of loss from one head against income from another. Till FY 2016-17, there was no limit for set off of Loss from House Property. A new sub-section 3A is introduced in Section 71 wef 1-Apr-2018 (i.e from AY 2018-19 which means it's effective from FY 2017-18).
Below is the full text of sub-section 3A of Section 71:
(3A) Notwithstanding anything contained in sub-section (1) or sub-section (2), where in respect of any assessment year, the net result of the computation under the head “Income from house property” is a loss and the assessee has income assessable under any other head of income, the assessee shall not be entitled to set off such loss, to the extent the amount of the loss exceeds two lakh rupees, against income under the other head.
So, You have to first Compute Income from House Property and then set off loss, if any, up to Rs. 2 Lakh and carry forward the loss exceeding Rs. 2 Lakh up to 8 Assessment Years.
As per Section 71B, this Carried Forward Loss can be set off only against Income from House Property.
As per your query, you have one Self-occupied house and another let-out house.
Loss from self-occupied property is Rs. 2 Lakhs.
Loss from let-out property is Rs. more then 2 Lakhs. For calculation purpose, I assume it at Rs. 3 Lakhs.
So, Total Loss under the Head House Property is Rs. 5 Lakhs.
This means, you can set off Rs. 2 Lakhs against Salary Income in AY 2018-19 (i,e. FY 2017-18) and carry forward the remaining loss i.e Rs. 3 Lakhs to be set off any time up to 8 Assessment Years from AY 2018-19. (i.e from AY 2019-20 to AY 2027-28)