In a coded language
RATAN is written as PCRCL
PUJARI is written as NWHCPK
MADAN is written as KCBCL
SUPARI is written as QWNCPK
Then MADARI is written as .....
On taking the pattern of (x-2), (x+2), (x-2), (x+2)..... in the given words we can obtain the coded words.
In MADARI , on taking the given procedure we get KCBCPK