THIS BOOK HAS ALL THE DETAILS IN UG TRB SULLABUS AND DIVIDED INTO SMALL CHUNKS FOR BETTER PRACTICE AND REVISION OF DETAILS.IT SERVES AS A TOOL OF PREPARATION ,REVISION AND PRACTICE .ALL DETAILS IN THIS BOOK HELPS TO UPGRADE YOUR PREPARATION TO NEXT LEVEL.FOR BETTER RESULTS USE ALL OTHER THREE GUIDE BOOKS FOR UG-TRB I,II.III TOGETHER.