No, most of the time they won’t reverse it. However, remember that this will count towards your monthly limit of 750 points.
Since you made two transactions of ₹20,000 each, totaling ₹40,000. For this, you will earn 400 points.
You are now left with 350 points.
For the rest of the month, any transaction above ₹35,000 will not earn you any points.