Info:
If you use SBI debit card for CC Bill payment for amounts more than 1L in one single transaction, you will get a maximum of 1000 points only.
Example: If the bill amount is 140000, and you do it in one shot, you will get only 1000 points. (I am talking about base points, milestone points is separate)
BUT, if you split it into two transactions of 100000 and 40000, and do as 2 separate transactions, you will get 1000 and 400 points separately.
In short, the maximum points that you get for 1 txn is 1000, whatever be the amount above 1L.
So, better to split it into multiple txns and do, so that you will get points for all pieces.
(Based on my personal experience)