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.

The Lokpal and Lokayuktas Bill, 2011 was passed by Lok Sabha yesterday. The Bill will be discussed next by Rajya Sabha. Unlike the Lok Sabha, where the UPA government holds a majority in the House, the composition is different in Rajya Sabha. As on 28th December 2011, the total strength of Rajya Sabha is 243 members . The UPA has a combined strength of 95 members in the House, well below the 50% mark.  (Of course, there will be some absent members which will change the arithmetic a bit.)  The passage of the Bill thus depends on the stand taken by other political parties and their numbers in the House. Here's how the figures stack up:

Party Numbers
Indian National Congress (INC) 71
Dravida Munnetra Kazhagam (DMK) 7
Nationalist Congress Party (NCP) 7
All India Trinamool Congress (AITC) 6
Jammu and Kashmir National Conference 2
Sikkim Democratic Front (SDF) 1
Rashtriya Lok Dal (RLD) 1
Total UPA 95
   
Bharatiya Janata Party (BJP) 51
Janata Dal (United) 8
Shiv Sena (SS) 4
Shiromani Akali Dal (SAD) 3
Total NDA 66
   
Communist Party of India (Marxist) 13
Communist Party of India (CPI) 5
All India Forward Bloc (AIFB) 1
Total Left 19
   
Bahujan Samaj Party (BSP ) 18
Biju Janata Dal (BJD ) 6
All India Anna Dravida Munnetra Kazagham (AIADMK ) 5
Samajwadi Party (SP ) 5
Rashtriya Janata Dal (RJD ) 4
   
Asom Gana Parishad (AGP ) 2
Bodoland People's Front (BPF ) 1
Indian National Lok Dal (INLD ) 1
Lok Janasakti Party (LJP ) 1
Mizo National Front (MNF ) 1
Nagaland People's Front (NPF ) 1
Telugu Desam Party (TDP ) 4
   
Nominated 8
Independent and others 6
   
Total 243