Economic Survey

Presentation of Budget by the central government is an eagerly awaited event every year. Economic Survey is presented to the parliament only a few days prior to presentation of the Budget. Why should it be so? Will it not be worthwhile if the Economic Survey is tabled atleast a fortnight in advance so that there will be a meaningful national debate which can also be a last minute vital input to the Budget? A related question is should the survey be as bulky as it is? The survey contains such a deluge of data that any purposeful debate in the parliament is ruled out in limine.