How do I run Lua script using Arduino IDE ? (Using an Arduino uno board as the serial provider for ESP8266) - lua

Question

(I am a complete newbie to microcontrollers and I am a barely intermediate level programmer)
If I send these commands through the serial monitor everything works fine . But if I try it using the code below it just does't work and show errors and what not.
#include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 4); // RX, TX
void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(9600);
Serial.println("Goodnight moon!");
// set the data rate for the SoftwareSerial port
mySerial.begin(9600);
mySerial.println("conn=net.createConnection(net.TCP, 0)");
mySerial.println("conn:on('receive', function(conn, payload) print(payload) end)");
mySerial.println("conn:connect(80,'50.87.151.128')");
mySerial.println("conn:send('GET /devashishproject/time.php HTTP/1.1\\r\\n')");
mySerial.println("conn:send('Host: kartikkhattar.com\\r\\n')");
mySerial.println("conn:send('Accept: */*\\r\\n')");
mySerial.println("conn:send('User-Agent: Mozilla/4.0 (compatible; esp8266 Lua; Windows NT 5.1)\\r\\n')");
mySerial.println("conn:send('\\r\\n')");
}
void loop() // run over and over
{
if (mySerial.available())
Serial.print((char)mySerial.read());
if (Serial.available())
mySerial.write((char)Serial.read());
}
It just shows garbled information .Where am I going wrong? Does it have to do the power supply? But it works normally when enter these commands through the serial monitor? Why won't it work when I put it in a code like above?