In the late 1960s and 70s, defections (elected legislators changing parties after the election) in Parliament and State Legislatures became very frequent, so frequent in fact, that the epithet "Aaya Ram Gaya Ram" was coined to describe the same.  To curb this problem which created instability in our legislatures, Parliament amended the Constitution.  They inserted the Tenth Schedule to the Constitution "to curb the evil of political defections".  As a result, we currently have an anti-defection law with the following features: 1.  If an MP/MLA who belongs to a political party voluntarily resigns from his party or, disobeys the party "whip" (a direction given by the party to all MPs/ MLAs to vote in a certain manner), he is disqualified.   The party may however condone the MP/ MLA within 15 days. 2.  An independent MP/ MLA cannot join a political party after the election. 3.  An MP/ MLA who is nominated (to the Rajya Sabha or upper houses in state legislatures) can only join a party within 6 months of his election. 4.  Mergers of well-defined groups of individuals or political parties are exempted from disqualification if certain conditions are met. 5.  The decision to disqualify is taken by the Speaker/ Chairman of the House. The table below summarizes provisions of anti-defection law in some other countries.  (For more, click here).  As one may note, a number of developed countries do not have any law to regulate defection.

Regulation of defection in some countries

Country Experi-ence Law on defection The Law on Defection
Bangladesh Yes Yes The Constitution says a member shall vacate his seat if he resigns from or votes against the directions given by his party.  The dispute is referred by the Speaker to the Election Commission.
Kenya Yes Yes The Constitution states that a member who resigns from his party has to vacate his seat.  The decision is by the Speaker, and the member may appeal to the High Court.
Singapore Yes Yes Constitution says a member must vacate his seat if he resigns, or is expelled from his party.  Article 48 states that Parliament decides on any question relating to the disqualification of a member.
South Africa Yes Yes The Constitution provides that a member loses membership of the Parliament if he ceases to be a member of the party that nominated him.
Australia Yes No  
Canada Yes No  
France Yes No  
Germany Yes No  
Malaysia Yes No  
United Kingdom Yes No  

We wrote an FAQ on the Lok Pal Bill for Rediff.  See http://www.rediff.com/news/slide-show/slide-show-1-all-you-wanted-to-know-about-the-lokpal-bill/20110808.htm The full text is reproduced below. What is the purpose of the Lok Pal Bill? The Bill seeks to establish an institution that will inquire into allegations of corruption against certain public functionaries.  It establishes the office of the Lok Pal for this purpose.   What is the composition of the Lok Pal? The Lok Pal shall consist of a Chairperson and up to eight members.  The Chairperson, and at least half of the members have to be current or former judges of the Supreme Court or Chief Justices of High Courts.  The other members will have at least 25 years experience in matters related to anti-corruption policy, vigilance, public administration, finance, law and management.   Who selects the Lok Pal? The Selection Committee consists of the Prime Minister, Lok Sabha Speaker, the Leader of Opposition in each House of Parliament, a Union Cabinet Minister, a sitting Supreme Court Judge, a sitting High Court Chief Justice, an eminent jurist, a person of eminence in public life.  The two judges on this Committee will be nominated by the Chief Justice of India.   Who comes under the jurisdiction of the Lok Pal? There are seven categories of persons under the Lok Pal: (a) Prime Minister after demitting office; (b) current and former Ministers; (c) current and former MPs (d) all Group A officers of the central government; (e) all Group A equivalent officers or PSUs and other government bodies; (f) directors and officers of NGOs which receive government financing; (g) directors and officers of NGOs which receive funds from the public, and have annual income above a level to be notified by the government. The speech and vote of MPs in Parliament are exempt from the purview of the Lok Pal.   What are the major powers of the Lok Pal? The Lok Pal has two major wings: investigation wing and prosecution wing.  The Lok Pal can ask the investigation wing to conduct preliminary investigation of any offence alleged to be committed under the Prevention of Corruption Act, 1988.  It can then conduct an inquiry.  If the inquiry concludes that an offence was committed, the Lok Pal can recommend disciplinary action.  It can also file a case in the Special Court.   Does the Lok Pal need any prior sanction to initiate any action? No.  The Bill states that the Lok Pal does not need prior sanction to inquire into an offence, or to initiate prosecution in the special court.   What are special courts under this Bill? The central government is required to constitute special courts to hear and decide cases under this Bill.  The Lok Pal shall recommend the number of such courts.   What are the various time limits for conducting inquiry and trial? All preliminary investigation or inquiry must be completed within 30 days of the complaints (and can be extended for a further three months, with written reasons).  The inquiry is to be completed within six months (extendable by six months).  The trial is to be completed within one year of filing the case.  This time may be extended by three months (and in further periods of three months each time) with written reasons, but the total time should not exceed two years.   How can the Lok Pal be removed from office? The President may make a reference to the Supreme Court, (a) either on his own, or (b) if 100 MPs sign a petition, or (c) if a citizen makes a petition and the President is satisfied that it should be referred.  If the Supreme Court, after an inquiry, finds the charge of misbehaviour was valid against the Chairperson or a Member and recommends removal, he shall be removed by the President.   What are the provisions for the expenses of the Lok Pal? The Bill provides that all expenses will be charged, i.e., the amount will be provided without requiring a vote in Parliament.  The Bill estimates recurring expenditure of Rs 100 crore per annum, and a non-recurring expenditure of Rs 50 crore.  It also estimates a further Rs 400 crore for a building.   What are the major differences from the Jan Lok Pal Bill drafted by Team-Anna? There are several differences.  The composition of the Lok Pal and the selection process are different; the Jan Lok Pal draft included a search committee with civil society members to shortlist the eligible members of the Lok Pal.  The Lok Pal had jurisdiction over the PM, the judiciary and all public servants (only Group A officers in the government Bill); it included the speech and vote of MPs in Parliament; it did not include NGOs.  The Jan Lok Pal Bill provided that the investigation and prosecution wings of the CBI shall report to the Lok Pal for corruption cases.  It also had penalties ranging from six months to life imprisonment (under the government Bill, the maximum imprisonment is derived from the Prevention of Corruption Act, 1988, and is 7 years).