You can only check the total current number. I was keeping the track since last couple of weeks, you can even see my posts in this thread asking other folks if they got the rest of 5x points yet in last few weeks
As of now smartbuy portal doesn't reflect the rest of myntra 5x points to me. But mycards shows a jump of 7.5k points (effectively the 5x points I was waiting for).
I didn't had any other smartbuy accelerated purchases and one of my friend also got it and he called hdfc customer care to confirm and they said its through smartbuy march offer.
You can only see the breakup of points earned in credit card statement