Page Layouts Not Showing Custom Fields Data With ApiMethod "getRecordById"

Page Layouts Not Showing Custom Fields Data With ApiMethod "getRecordById"


Hello,

I've three number of layouts in Deals 

1. Insurance
2. Banking
3. BroadBand

All of above three layouts contains different text fields and we store data in those fields.
Now try to understand my scenario.


Deal 1
POTENTIALID : 2389429384212154
Name : abc
Stage : abc
Layout : Insurance
Tenure : 10 years
Premium : 10,000


Deal 2
POTENTIALID : 238942932121545
Name : efg
Stage : efg
Layout : Banking
Loan Amount : 1,000,00
Bank Name : SBB

Deal 3
POTENTIALID : 238942938429384
Name : hij
Stage : hij
Layout : BroadBand
Area : New York
Initial Payment : 3,000


Now I'm going to fetch the deal detail with the method "getRecordById" of no#3 deal.
https://crm.zoho.com/crm/private/xml/Potentials/getRecordById?authtoken=Auth Token&scope=crmapi&id=238942938429384
When data comes of that deal, 
Area & Initial Payment not coming.... 
But In Deal 1 , All details are coming,

Please guide me What should i do to get all the details of a deal. Thanks.