pakistan froud

I accidentally downloaded a loan app from the Play Store. As soon as I entered my mobile number and Aadhaar card in the app, I started receiving notifications about a loan of 5800. But when I checked, only 3000 came into my account and 2500 was deducted. I didn't know about this. Now I am getting calls from Pakistani numbers and sometimes threats on WhatsApp saying they will make my nude photos viral.