Trai — mismatch between sim account holder name and bill generated for same number

I am using vodafone sim since last more than 10 years. When i registered for auto pay, i got receipt. I was surprise that account holder name mentioned for my mobile number is different person where as the monthly bill is on my name only. How is it possible? Does it means your mobile number account holder might be different person?

Don't you think this is very sensitive in view of the country's security? Anyone can purchase fake sim cards and use for any illegal activities. Although adhar is also mandatory but these cellular companies can provide sim cards with anyone name to anyone since they have large database at their end.