MNP is complicated thing bro. Instead Prepaid to postpaid and postpaid to prepaid is simple one. And most operators easily agrees for migration in an impression that customer is still in their network.
Prepaid -> Postpaid (very very easy, the Vodafone people will go bonkers...)
Postpaid -> Prepaid ->

hone: > :clock: >:crazy1: > :russianroulette:
Some interesting highlights from this thread :
Link:
https://broadband.forum/vodafone-india-mobile/73937-postpaid-prepaid-its-mental-harrasment/
If my plan was not changed, then you have LIARS employed who call you back and confirm a plan change and never said that i need to visit
any stupid store to complete this, there was no mention of any action required from my end, only think sounded was like the executive was happy
to retain a post-paid customer, but seems once the customer agreed to remain on post-paid they just dump your request so you can be billed
for a higher amount plan.
Vodafone India attitude has changed a lot, they just want new customers, existing ones can be dumped easily
Vodafone gives a Damn on you, no matter how loyal you may have been, ( you will be proven stupid after your loyalty)
They love making you run like their DOG between 111 and vodafone store
I have more
business to take care of, I don't have stupid patience and time to listen to CRAP told by your ultra bright zozo type staff
who will never resolve a problem, all they are good at is handle those stupid request "CALLAR TUNEWA KA PAISA KAT GAWA, ka kari bhaiya"
Vodafine don't sound even a bit professional in all my recent experiences.
So at the end, I now regret for being a vodafone DOG :anger3:
I'm a voting for MNP cause "Postpaid -> Prepaid" is frankly too tiresome going by the experience of my fellow sufferers.
I so don't want be on their ZooZoo network...