[Resolved]  Vodafone India — sim card registration failed

I was using vodafone sim from past 4 to 5 years. Last year i was getting some blank calls so stopped using this number for a while. Now when i inserted the sim into my mobile it is showing up as sim registration failed. Kindly assist.

I was using my number for all my bank otps.

When i make a call to my number, it says this number is temporarily unavailable.

Please resolve my issue as soon as possible. My number is with my dad now. I am out of country for job purpose.

Please assist.