Large Taka — Blackmailing to recover loan

I have taken loan of rupees 3000 from large taka and they just gave me rupees 1800 and the loan is for 7 days. Now on the sixth day someone who is from large taka app sent me message o myn whatsapp and using inappropriate language and sending me nude pictures and blackmailing me that if I will not pay the loan right now then they will steal pictures from my phone storage and will edit that picture and make a nude picture and they will send that all pictures to all my phone contacts