Thus, the concept of Rolling Plans adopted by the Indian Planning Commission under the Jana Government is basically a rational one. Instead of a rigid framework, there has to be an annual operational plan with a fresh five-year perspective every year of a Rolling Five-Year Plan. This system, which marks a major departure from the past. calls for continuous adjustments in plan projections on the basis of resources availability, production trends and other economic developments. The Planning Commission is involved not only in updating the plan every year but also in keeping a continuous watch on the progress of plan projects. changes in price and production trends and other important developments which have a bearing on planning. However. the new system calls for more sophisticated techniques on the part of the Planning Commission to monitor not only the progress of plans but also other economic trends.