How to Register for Kaun Banega Crorepati- 4 KBC 4

1. KBC 4 BSNL Registration Code
SMS Number: 52525
IVR Number: 5052525
Answer Option: 01, 02, 03, 04
2. KBC 4 MTNL Registration Code
SMS Number: 52525
IVR Number: 5052525
Answer Option: 01, 02, 03, 04
3. KBC 4 Idea Registration Code
SMS Number: 55456
IVR Number: 55456
Answer Option: 01, 02, 03, 04
4. KBC 4 Other Phone Operators Registration Code
SMS Number: 52525
IVR Number: NA
Answer Option: NA