400 Bad Request in SIM300 GPRS module

[omerjerk]

I've got a SIM300 GPRS Module . And I want to make an HTTP Request to a PHP file with my GPRS Module.
This is the code of my AT Commands :

{
  if(firstTimeInLoop){
    GPRS.write("AT+CGATT=1"); 
    GPRS.write("\n\r");
    GPRS.write("AT+CGDCONT=1,\"IP\",\"airtelgprs.com\"");  
    GPRS.write("\n\r");
    GPRS.write("AT+CDNSCFG=\"208.67.222.222\",\"208.67.220.220\"");  
    GPRS.write("\n\r");
    GPRS.write("AT+CSTT=\"airtelgprs.com\",\"\",\"\""); 
    GPRS.write("\n\r");
    GPRS.write("AT+CIICR");  
    GPRS.write("\n\r");
    GPRS.write("AT+CIFSR");   
    GPRS.write("\n\r");
    GPRS.write("AT+CIPSTATUS"); 
    GPRS.write("\n\r");
    GPRS.write("AT+CIPHEAD=1");
    GPRS.write("\n\r");
    GPRS.write("AT+CDNSORIP=1");
    GPRS.write("\n\r");
    GPRS.write("AT+CIPSTART=\"TCP\",\"www.nationalyouthparty.org\",\"80\"");  
    GPRS.write("\n\r");
    GPRS.write("AT+CIPSEND"); 
    GPRS.write("\n\r");
    GPRS.write("GET /stick/mail.php HTTP/1.1");
    GPRS.write("Host: www.nationalyouthparty.org");
    GPRS.write("Connection: keep-alive");
    GPRS.write("Accept: */");
    GPRS.write("*");
    GPRS.write("Accept-Language: en-us");
    GPRS.write(ctrlZ);
    GPRS.write("\n\r");
    
    firstTimeInLoop = 0;
  }

But in return from the server I'm getting 400 Bad Request. How to make it working ?

 

[Soumyajit]

Use a SIM900 or SIM900A or SIM900D. Use HTTP GET & POST Request Commands instead of using a socket based protocol. I have tried to access php files and got successful results.