My cousin wants to pay to local shopkeeper to check if his iphone is stolen or not?

He bought used iphone, shopkeeper says he can tell if he gives him rs 100 or £1, from a website, but he asked me if he should provide the shopkeeper his imei no?

Wow you and your friend are dumb!

No its dumb

Congratulations,

you and your friend officially identified as DUMB.

Don't do it.
And know that you're taking a risk by buying electronics or phones from anywhere
that's not legitimate.