using two softwareserial in the code..!

String inData = String(inDataLENTGTH); // Allocate some space for the string

You really should spend some time looking at the String class. This does not do what the comment says.

const int ROLEPin1 = 6;     // isiklarin bagli oldugu pin
const int ROLEPin2 = 7;     // isiklarin bagli oldugu pin
const int ROLEPin3 = 8;     // isiklarin bagli oldugu pin
const int ROLEPin4 = 9;     // isiklarin bagli oldugu pin
const int ROLEPin5 = 10;     // isiklarin bagli oldugu pin
const int ROLEPin6 = 11;     // isiklarin bagli oldugu pin

You ever heard of arrays?

Only one instance of the SoftwareSerial class can listen at a time. You are never changing the instance that is listening.

You really need a Mega.