Successful account opened will be considered as per the month in which the account is opened, and not as per the month referred. Account opening credit is subject to tax deduction at source.
For instance, you may refer 8 friends in the month of July, of which 4 opened an account in July itself, while another 4 opened the account in August โ in this case you will be rewarded โน1200 for 4 successful referrals in both the months.