Hi @Sohan Adsul ,
the Azure Subscrpition is deleted or deactivated?
If the Azure Subscription is deactivated you can enable/reactivate the Azure Subscription again: Reactivate a disabled Azure subscription
If the Azure Subscription is deleted and not "visible in the Azure Portal" there is no way I am aware of to restore the Azure Subscription.
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten