Sim verification successful or not?

For the past couple of days every alternate day or so I get calls on my Ptcl landline from cellular numbers which are recoreded messages that you have won 1 million rupees etc. This menace was only on cell phones numbers but now they are on landline numbers as well.
So the question is has this verification of sims process been really successful ? Or cellular companies have again started to sell in unverified sims