Parminder — unauthorised calls

Address:

Faridkot, Punjab, 151212

I am receiving calls from one unknown number. The number is +381 [protected]. I am always working on the internet. My number is very important. But from last two days, i'm receiving some fake calls. I am the little bit scared about my privacy. Because my mobile and computer data is very valuable. Please let me know what solutions to stop receiving these fake calls