​In the following question, four letter pairs are given. The letters on left side of (-) is related to the letters on the right side of (-) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives. ​​​

Logic: 1st letter + 8 = 3rd letter and 2nd letter + 8 = 4th letter

Now, we check each options.

Option (a): BQ - JY (Follow)

B + 8 = J, Q + 8 = Y

Option (b): VK - DS (Follow)​

V + 8 = D, K + 8 = S

Option (c): LA - TI (Follow)​

L + 8 = T, A + 8 = I

Option (d): EI - MR (Not Follow)​

E + 8 = M, I + 8 $$\neq$$​ R

Option (a), (b), (c) follows the same logic except option (d).

Thus, correct option is (d).