Nested If is Null Function

Nested If is Null Function

Hi,

I had a table where had a 4 columns by names:

1. TMI Verticals
2. C&K Verticals
3. TMI e2E Academy Pvt. Ltd.
4.Group Shared Services Verticals

From the above 4 columns are dependents values, the value selected from the field should come in another New  Column.

Please help me out to resolve by problem.