Preliminary Examination:  Indian Polity and Governance-Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc. Mains Examination:  General Studies II: Parliament and State legislatures—structure, functioning, conduct of business, powers & privileges and issues arising out of these. What’s the ongoing story: If the first legislation he had proposed as Rajya Sabha ’s youngest member four years ago had become law, Raghav Chadha would not have been able to exit the AAP, along with six other party members of the House, and  “merge with” the BJP , an announcement he made two days ago, citing a two-thirds majority of AAP’s House strength of 10. Key Points to Ponder: • What constitutes defection? • What is the difference between horse trading and defection? • What Supreme Court said in the SR Bommai case (1994) with respect to Defection? • What is the anti-defection law, and what is its purpose?…