Executive_on_legislature: Summoning and Proroguing: The President has the power to summon and prorogue Parliament sessions.,Ordinance Making Power: Under Article 123, the Executive can legislate when Parliament is not in session (subject to judicial review).,Veto Power: The President can withhold assent to bills passed by Parliament (Suspensive/Absolute Veto).
Legislature_on_executive: Accountability through Parliamentary tools: Question Hour, Zero Hour, and Calling Attention Motions.,Financial Control: The Executive cannot spend a single rupee without Parliamentary approval (Budgetary process).,Confidence Control: The Council of Ministers is collectively responsible to the Lok Sabha; a No-Confidence Motion can topple the government.,Committees: Parliamentary Standing Committees and PAC (Public Accounts Committee) scrutinize executive actions and spending.
Judiciary_on_legislature_and_executive: Judicial Review: Under Articles 13, 32, and 226, the Judiciary can declare laws (Legislative) or orders (Executive) unconstitutional if they violate Fundamental Rights.,Basic Structure Doctrine: Established in Kesavananda Bharati (1973), it prevents the Parliament from amending the core identity of the Constitution.,Writ Jurisdiction: Protecting citizens against arbitrary state action via Habeas Corpus, Mandamus, etc.
Legislature_and_executive_on_judiciary: Appointment Process: The Executive plays a role in judicial appointments (though tempered by the Collegium system).,Impeachment: Parliament has the power to remove judges on grounds of proven misbehavior or incapacity.,Legislation: Parliament can amend laws to rectify 'errors' in judicial interpretations (provided it doesn't violate the Basic Structure).