Hi Rajendran,
below some detail that you want:
1) Syncfusion version details: 
2) details of script error if any occurred in the browser console: in my browser I don't have grid but when I debug my code witch breakpoint in EJSGRID bloc, the cursus break this bloc and I have this error message
you can that when my condition is ok (when moData != null) normally the EJSGRID should display data but it's not the case.
normally without Data the grid should display the scheme.
N.B: in the other case the same grid display the local data.
3) External source data
my grid is in the condition as you can see