The present research project is devoted to introduce what error analysis is and what sort of relationship it has with language teaching and what contribution it provides for English language teaching and learning. The investigator being a teacher educator in Methods of teaching English found it worthwhile to undertake a research study to identify the errors of B.Ed., trainees while writing in English and suggested a remedial program to overcome errors and improve their writing skills in English. This study is concerned with error analysis and its contribution to English language teaching at both linguistic and methodological levels.