In a certain coding language, 'KANPUR' is coded as 'JBMQTS'. How will 'BOMBAY'…

Concept

In position-wise letter coding, compare each input letter with the output letter at the same position to identify the transformation.

When the pattern alternates, one fixed shift applies to odd positions and another to even positions; shifts wrap around the alphabet when needed.

Application

1. Compare KANPUR with JBMQTS: K→J (−1), A→B (+1), N→M (−1), P→Q (+1), U→T (−1), and R→S (+1). Thus odd positions move one letter backward and even positions move one letter forward.

2. Apply the same position-wise rule to BOMBAY:

   Position	Input	Shift	Output
   1	B	−1	A
   2	O	+1	P
   3	M	−1	L
   4	B	+1	C
   5	A	−1 with wrap	Z
   6	Y	+1	Z

3. Joining the transformed letters gives APLCZZ.

Cross-check

Reverse the shifts on APLCZZ: move odd-position letters one step forward and even-position letters one step backward. This returns BOMBAY, confirming the transformation.

Therefore, BOMBAY is coded as APLCZZ.