Following are steps to change Vodafone postpaid to prepaid:

  1. Go to nearest Vodafone store
  2. Ask to executive for token number by mentioning the reason for visit (Want to change postpaid to prepaid)
  3. Executive will ask about AADHAR number > Provide aadhar number
  4. Pay the unbilled amount of postpaid number till date via card or cash.
  5. Executive will verify your authentication detail of AADHAR
  6. You will get new prepaid SIM
  7. Put new prepaid sim in your phone after old sim got inactive (No signal in old sim )
  8. First dial the number provided by executive and provide details.
  9.  Your security deposit of postpaid will be credited as balance in your prepaid (If security is less than 1000).