During the recess, the Departmentally Related Standing Committees of Parliament examine the Demand for Grants submitted by various Ministries.  The Demand for Grants are detailed explanations of that Ministry's annual budget which form part of the total budget of the government.  These are examined in detail, and the committees can approve of the demands, or suggest changes.  The Demand for Grants are finally discussed and voted on by the Parliament after the recess.  (The post below lists the ministries whose Demand for Grants will be discussed in detail after the recess). The issue is - how effective is the institution of Parliament in examining the budget?  Though India specific information on this subject is hard to find, K. Barraclough and B. Dorotinsky have cited the World Bank - OECD Budget procedures Database to formulate a table on the legislature approving the budget presented by the executive ("The Role of the Legislature in the Budget Process: A Comparative Review", Legislative Oversight and Budgeting).  I reproduce the table below:

In Practice, does the legislature generally approve the budget as presented by the Executive? (in percent)
Answer All Countries OECD Countries Presidential democracies Parliamentary democracies
It generally approves the budget with no changes 34 33 14 41
Minor changes are made (affecting less than 3% of total spending) 63 67 71 59
Major changes are made (affecting more than 3% but less than 20% of total spending) 2 0 7 0
The budget approved is significantly different (affecting more than 20% of total spending) 0 0 0 0
Sources:  K. Barraclough and B. Dorotinsky; PRS.

Because of the interest in the Women’s Reservation Bill and the Civil Liability for Nuclear Damage Bill, we’ve received a number of queries about the process by which a bill becomes an Act. We have a more comprehensive primer on the subject, but here’s the process in brief: •The ministry drafts a text of the proposed law, which is called a ‘Bill’, after calling comments from other ministries, and even from the public.  The draft is revised to incorporate such inputs and is then vetted by the Law Ministry. It is then presented to the Cabinet for approval. •After the Cabinet approves the Bill, it is introduced in Parliament. In Parliament, it goes through three Readings in both Houses. • During the First Reading the Bill is introduced. The introduction of a Bill may be opposed and the matter may be put to a vote in the House. •After a Bill has been introduced, the Bill may be referred to the concerned Departmentally Related Standing Committee for examination. •The Standing Committee considers the broad objectives and the specific clauses of the Bill referred to it and may invite public comments on a Bill. It then submits its recommendations in the form of a report to Parliament. •In the Second Reading (Consideration), the Bill is scrutinized thoroughly. Each clause of the Bill is discussed and may be accepted, amended or rejected. The government, or any MP, may introduce amendments to the Bill.  However, the government is not bound to accept the Committee’s recommendations. •During the Third Reading (Passing), the House votes on the redrafted Bill. •If the Bill is passed in one House, it is then sent to the other House, where it goes through the second and third readings. •After both Houses of Parliament pass a Bill, it is presented to the President for assent.   He/She has the right to seek information and clarification about the Bill, and may return it to Parliament for reconsideration. (If both Houses pass the Bill again, the President has to assent) • After the President gives assent, the Bill is notified as an Act.