Are Hindus Tamils discriminated by the state of Srilanka or not ? Has the Lankan state army not carried out genocide against Hindus Tamils in jaffna or not. Why are north Indian Hindus so apologetic about situation of the Lankan Hindus.
There's a difference between what can be justified in a court of law by bringing in an amendment without undermining the Constitution and bringing in an omnibus bill to treat every Hindu in our vicinity as an automatic citizen of India, should they be willing to make the journey to India . Hindus in Islamic theocratic countries are still facing persecution in every sense of the word and unless they quit the land or convert they will be persecuted. The Tamils in SL were persecuted and are still at a disadvantage . Arguably, their supposed conversion to Buddhism won't ameliorate their plight.
However, they still account for a good 15% of the total population and seem to be maintaining the same as of now. If you add Tamils Muslims to this category, they could well account for 20-25% of the total population. However, though the Malays ( as the Tamil Muslims are locally known) are known to speak Tamil as their mother tongue, they don't consider themselves Tamils . Rather they see themselves as Muslims. This also caused grave disagreements with the Tigers when they de facto ruled the east & north of SL such that there were massacres of Tamil Muslims by the LTTE leading to the expulsion of Tamil Muslims from these parts.
To come back to the Tamils, there were the plantation Tamils who were brought in by the British to work the tea estates in SL & there were the native Tamils who were already in SL since ancient times. Under an agreement, India took back the plantation Tamils. If we extend the same facility to the other Tamils, the extremist Sinhalese will be tempted to further their persecution of the Tamils there. This isn't what we want to encourage.
Then there's the case of Burma too. A large number of Indians moved there in British times and post independence came to dominate trade there for which they were despised. In the 1950's & 60's state organised pogroms saw them being expelled to India which accepted them & gave them citizenship. There's still a small residue of those Indians in Burma. One can't say if they're being persecuted. I haven't come across any article citing such persecution.
The Tamil refugees in India can always be made citizens through another amendment once the CAB is passed and all the heat & dust around this settles down post a SC verdict on it. I suspect that's the game plan. For the present, this CAB is merely a pre cursor to the NRC to follow with major implications for WB & Assam, essentially.