Hey Yuvraj, we can create a Data Driven Framework by using @DataProvider annotation in TestNG.
@DataProvider(name="getData")
 public Object[][] getData(){
  //Object [][] data = new Object [rowCount][colCount];
  Object [][] data = new Object [2][2];
  
  data [0][0] = "FirstId";
  data [0][1] = "FirstPswd";
  
  data[1][0] = "SecondId";
  data[1][1] = "SecondPswd";
  
  return data;
  
 }