Hi abhishek17, would be great to have a little more info on that.
What is the exact string of CurrentRequest.TheData?
Also, could you please print what is arriving at your PHP script by printing all POST variables using print_r($_POST); in PHP.
I see that your are trying to transfer your data as Content-Tyoe application/json, but you are formatting your data as Content-Type application/x-www-form-urlencoded