Aircel — number portability code

My service provider is aircel and my mobile number is [protected]. All of a sudden from today noon i am not getting tower. Heard from others / messages in my family members vodafone numbers that aircel has closed its business.

I need to get number portability code for my above aircel number which i again give below:
Aircel - [protected] chennai circle.

How do i get that code as i must have the same number so as to transfer smoothly to vodafone which i intend to shift to.

If aircel is to give / provide the "number portability code" they can do so to my mail id : [protected]@yahoo.co.in which i have already provided to aircel.

Regards