for normal esaver
feb and mar promo - earn interest for incremental fresh funds* (compared to January 2023 average daily balance)
Apr and May promo- earn interest for incremental fresh funds* (compared to Mar 2023 average daily balance)
Jun and Jul promo - earn interest for incremental fresh funds* (compared to May 2023 average daily balance)
Aug and Sep promo - earn interest for incremental fresh funds* (compared to July 2023 average daily balance)
And so on, assuming no change.
to earn bonus interest, It will always compare the previous month ADB of the start of the promotion month, even if u put money during anytime of the promo 2 month period.
For normal esaver promo, the interest is credited on 1st of next month.