How to block a number of spam person from my sim card permanently

[shereenbarbie]

One guy is calling me daily. I have blocked his number from truwcalleril. But that notification is coming for me whenever they call me. I need to block his number permanently from my sim.i am using idea sim. It's my personal number so I couldn't change my number.

 

[shereenbarbie]

I have called idea customer care they told it's not possible for them to block the number. And I'm using an Android tablet. I dint find any block option in that. Also if I change my phone again that number may get unblocked. What to do

 

[pinkubhavya1988]

My idea number blocked please unblock

 

[rgd1101]

My idea number blocked please unblock

They blocked you?