Why do they require Adhar Card and Pan card number

Hello, Being open in th market caurrently and finding job since quite a while (unemployed since last 3 Months). I came across a companies job post, on the job portal where they were asking. PAN card and ADHAR card details. Why is it required ? nowadays job portals feel more of getting data and selling it rather than getting a Job. if you have openings in your company could you consider refering me. 4 Years working as a Product Specalist and seeking opportunities in Product Managment.