To know if your SIM is verified or not, follow below procedure to make sure:
→ Check GrameenPhone SIM is biometric verified or not
write Reg and send SMS to 4949 (Free)
→ Check Banglalink SIM is biometric verified or not
dial *1600*1# (Free)
→ Check Robi SIM is biometric verified or not
dial *1600*1# (Free)
→ Check Airtel SIM is biometric verified or not
dial *121*444# (Free)
→ Check Teletalk SIM is biometric verified or not
write Q and send SMS to 1600 (Free)"