I agree with the third one. Mother and SA have said that Pakistan should never be accepted as a settled fact - acknowledging it as a nation and respecting its sovereignity would amount to doing that. As to being interested in its internal affairs there are two issues: If those "internal" affairs affect India we cannot but be interested and involved. Second, by its hostile actions in Kashmir and elsewhere and by openly expressing interest in destabilizing India, Pakistan has made its intentions clear. In such a situation, India cannot be expected to be purely defensive in its response.