From three given codes find the code for each character and use it.

Correct Option: D

From question
PARK ⇒ 5394 ....(i)
SHIRT ⇒ 17698 ...(ii)
PANDIT ⇒ 532068 ...(iii)

from (i), (ii) and (iii)
N ⇒ 2
I ⇒ 6
S ⇒ 1
H ⇒ 7
A ⇒ 3
R ⇒ 9

So code for NISHAR is 261739

If a alphabate is at 'nth' position in their alphabetical order from the beginning then code is the alphabet at 'nth' position from the end.

Correct Option: D

If a alphabate is at 'nth' position in their alphabetical order from the beginning then code is the alphabet at 'nth' position from the end.

So the code for REQUIRED is IVJFRIVW.

Alphabets of the word are written in reverse order.

Correct Option: C

From given code it is clear that the alphabets of the word are written in reverse order.

So the code for LADYFINGER is REGNIFYDAL

Subtract one from number of alphabets in the given word

Correct Option: C

Subtract one from number of alphabets in the given word
Total number of alphabets in GOVERNMENT = 10.
So the code for GOVERNMENT is 10-1 = 9

From given question it is clear that the alphabet at odd position from beginning are intact in the code and the alphabet at even positions are replaced by the next alphabets in alphabetical order.

Correct Option: A

From given question it is clear that the alphabet at odd position from beginning are intact in the code and the alphabet at even positions are replaced by the next alphabets in alphabetical order.
L + 0 = L
O + 1 = P
F + 0 = F
T + 1 = U
Y + 0 = Y

So the code for DWARF is DXASF