DELHI is coded as WVOSR. Choose the right code for ORNRG

The following table shows the position values of the alphabets:

We can also memorize the alphabets so that we do not do any calculation mistakes and also reduce the time to solve answers: 

The pattern observed is that the sum of the numbers comes out to be 27

DELHI = 4, 5, 12, 8, 9

WVOSR = 23, 22, 15, 19, 18

4 + 23 = 27, 5 + 22 = 27, 12 + 15 = 27, 8 + 19 = 27, 9 + 18 = 27

ORNRG = 15, 18, 14, 18, 7

Code = 27 - 15 = 12, 27 - 18 = 9, 27 - 14 = 13, 27 - 18 = 9, 27 - 7 = 20

12, 9, 13, 9, 20

LIMIT