@Prathap Gunasekara If you want to redirect to yourdomain.com rather than yourdomain.b2clogin.com during sign-up/sign-in, this feature is currently under private preview and available to few customers (who enrolled for this private preview) as the product team is currently working on it.
There is an active feedback for this feature here: https://feedback.azure.com/forums/169401-azure-active-directory/suggestions/15334317-customer-owned-domains. You can monitor this link for any updates on this feature.
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