DELHI
D has index 4 from the start that is from A, from Z the alphabet with index 4 is W.
E has index 5 from A and to Z alphabet with index 5 is V.
Similarly for DELHI
Delhi = WVOSR
Now an index of W from A is 23, for V it is 22, so
For WVOSR indexes are 23,22,15,19,18
Now adding these together:
2+3, 2+2,1+5,1+9,1+8 = 5,4,6,10,9
Again adding these: 5+4+6+1+0+9 = 25
So Delhi = 25
Now for PATNA
PATNA = KZGMZ and its indexes: 11,26,7,13,26
Adding these 2,8,7,4,8 = 29
PATNA = 29
Now for GROUND
GROUND = TILFMW = 20,9,12,6,13,23 = 2,9,12,6,4,5 = 2,9,3,6,4,5 = 29
Hence, GROUND = 29