Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_23915973_1 (frequency VARCHAR, branding VARCHAR)

### Question ###
What is the frequency when radio station branding is 106.3 energy fm naga?

### Accurate SQL ###

SELECT frequency FROM table_23915973_1 WHERE branding = "106.3 Energy FM Naga"