This is made out to give the practical approach to the theory "Rise and fall method" used for calculations of reduced levels. This video shows how the leveling exercise can be done in the field and how the calculations are being done using rise and fall method. Further this video has specially shown how the rise and fall in the existing ground level are identified using an easy theory; Compare two heights referred to a one reference line (Line of collimation). From this video you can learn how to record level readings in a field note book.