Nope... Silk yes...
But not maheshwari...
Maheshwari is a type from Madhya Pradesh... From a place called Maheshwar along the banks of Narmada. It's mostly a cotton version that it popular.
Maharashtrian weddings generally have a variety of sarees for each of the wedding events. Both bride and groom change multiple times. Colours are fixed type can vary..
For example , varmala happens in a yellow saree which is gifted by Mama.