I can tell it is 1%..
i have made 5-6 different types of transaction in park+( means fuel purchase, car accesory purchase, gift card purchase, spin the wheel voucher purchase, fastag recharge)
all have resulted into 1% cashback
hence, for me except swiggy app, the card have no use...
i was planning to close it but I requested customer care to make it LTF and they approved it
hence, i will be keeping it..