Examine the constitutional realities governing the territorial stability and legislative reach of constituent states within the Indian Republic:
1. The central parliamentary body possesses the unhindered authority to unilaterally redraw the geopolitical map of the nation.
2. Regional state assemblies are constitutionally guaranteed the perpetual preservation and territorial integrity of their borders.
3. Regional state assemblies are empowered to enact 'extra-territorial legislation' to govern their residents operating in foreign jurisdictions.