How to create an observer for a product deletion?

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1

I want to create an observer for Product deletion. Means when admin
deletes a product, during deletion I want to add some custom
functionality in this process. Currently I’m using

catalog_controller_product_delete

for this purpose. But it is doing nothing for me. Please help me. How can I do something extra during product deletion?

2
3

Thanks for reply sandeep sir, but i am little bit confuse to how and where can i dispatch the event to delete the product from admin side.