Hello @SeemaM85 ,
Based on your import/export activity, all you did was delete lists - you didn't actually delete any contacts. Remember when deleting lists, if you select the option to delete lists and the contacts within, we warn that any contacts on other lists will not be deleted with the selected list. I'd advise following along with our article on deleting contacts, if you need step-by-step and visual guidance on doing so.
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