This is a landmark judgment from Hon’ble Supreme Court, to protect the folks who marry inter-caste or inter-religion and against the wishes of their parents, which could have led to honour killings or other forms of harassment and violence.

Citations : [2006 AIR SC 2522], [2006 SCR SUPP 3 350], [2006 SCC CRI 2 478], [2006 SCALE 6 583], [2006 SCC 5 475], [2006 SUPREME 5 266], [2006 CRLJ SC 3309], [2006 JT 6 173], [2006 ANJ SC 2 313], [2006 CRIMES SC 3 41], [2006 AIR SC 3499], [2006 KERLT 3 375], [2006 ALL LJ 5 357], [2006 AIR SCW 3499]

Other Sources :

https://indiankanoon.org/doc/1364215/

https://www.casemine.com/judgement/in/5609ae31e4b0149711413225

The index page is here.