Hi @suryaprakash Did you find any suitable app for this or are you still looking for an app to get this resolved. If you are still looking for an app you can try using the Discount Depot App, it allows you to give custom discount to the customers based on the tags assigned to them.
I have been using the same app to diaplay custom discount to my customers based on the tags assigned to them as "wholesale" "Dropshipper" "Retail".
Shopify Developer/Consultant If my suggestions are useful, please let me know by giving it a like or marking it as a solution. And if you want to customize or develop new feature on Theme or App. Skype:-ankit.thakur_5