Flipkart — complaint for leaking my address data, and privacy breach.

Address:

North Goa, Goa

Yesterday morning i. E. 24th july 2019 i got a call from a person followed by a message that i had to shop anything worth 3000inr on flipkart, call him back and provide him some id of the order, after which i would be eligible for some assured gift. When i called customer care they said it was fraud call. How can flipkart leak my personal information, my address and all the order details. He told me where i live, what was my last order and when was my last order (Which is almost 7 months ago). I'm seriously not happy with flipkart's behavior.