People who want these cards for the metal form factor, do not go for Ashva. I applied for both, I received both.
Mayura looks amazing, no doubt. It shimmers in light, has that textured finish and is almost as heavy as OneCard/Infinia.
Ashva is straight away plain and dull. It lacks the feel of a metal card. Even the horses are not embossed unlike Mayura. Looks like a cheap plastic card with some additional weight.