In a certain code language, if AMRITSAR is coded as MAIRSTRA, DURGAPUR is coded as UDGRPARU, then what will SHILLONG be coded as?

Correct option is C

Logic: the letter is swap alternatively-
For AMRITSAR to MAIRSTRA:
Swap the first and second letters: AM → MA
Swap the third and fourth letters: RI → IR
Swap the fifth and sixth letters: TS → ST
Swap the seventh and eighth letters: AR → RA
For DURGAPUR to UDGRPARU:
Swap the first and second letters: DU → UD
Swap the third and fourth letters: RG → GR
Swap the fifth and sixth letters: AP → PA
Swap the seventh and eighth letters: UR → RU
For SHILLONG to HSLIOLGN:
Swap the first and second letters: SH → HS
Swap the third and fourth letters: IL → LI
Swap the fifth and sixth letters: LO → OL
Swap the seventh and eighth letters: NG → GN
Correct answer is (c).